expressions
High-Performance Magnets the power of simulations
Jörg Schröder &Maximilian Reichel
Seismic Metamaterials:
A Novel Approach forAlleviating Earthquake
Damages
C.W. Lim,
Guifeng Wang &Zhifei Shi
Book Review Structural Dynamics
by Dan Givoli
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2 High-Performance Magnets - the power of simulations
Jörg Schröder & Maximilian Reichel
6 Seismic Metamaterials: A Novel Approach for Alleviating Earthquake Damages
C.W. Lim, Guifeng Wang & Zhifei Shi

contents

11 Structural Dynamics
Peretz P. Friedmann, George A. Lesieutre & Daning Huang
Book Review by Dan Givoli
14
16
18
20
23
24
25
26
28
29
30
32
34

AMCA
ACMT
CACM
UKACM
USACM
JACM
JSCES
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PACM
ABMEC
CSMA

The Argentine Association for Computational Mechanics
The Association of Computational Mechanics Taiwan
Chinese Association for Computational Mechanics
UK Association for Computational Mechanics
US Association for Computational Mechanics
Japan Association for Computational Mechanics
Japan Society for Computational Engineering and Science
German Association for Computational Mechanics
Central European Association for Computational Mechanics
Gruppo Italiano di Meccanica Computazionale
Polish Association of Theoretical and Applied Mechanics
Associacao Brasileira de Métodos Computacionais em Engenharia
French Computational Structural Mechanics Association

36 Conference Diary Planner

The International Association for Computational
Mechanics (IACM) community experienced aprofound and devastating loss last year with thepassing of two towering figures in the field:
Dr. J. Tinsley Oden, widely regarded as one of thefounding fathers of computational mechanics, and
Dr. I. Babuška, a seminal figure in the mathematics ofthe finite element method. Their expertise, guidance,
and advice impacted the lives of countless people
and shaped the trajectory of computational mechanics
and applied mathematics. As we bid farewell to these
giants, let us rely on their achievements as lights
along a path towards a vibrant future.
Now, as part of this concerted effort to reinvigorate
our community, the eagerly awaited face-to-faceWorld Congress on Computational Mechanics(WCCM) is making a return after a six-year hiatus.
The absence of in-person gatherings in Parisand Yokohama was undoubtedly a profounddisappointment for the IACM community. The lossof those opportunities to convene and exchange
ideas face-to-face was keenly felt by all. However,
leveraging online conferencing tools, we were able
to bridge the physical distance and engage in fruitful
discussions and lively conversations. Even now
that face-to-face meetings have resumed, these
digital communication platforms continue to play
an important role, and we believe that when used
together they will continue to foster a more dynamic

and interconnected community that is poised forfurther development in the field of computational
mechanics.
The IACM was happy to announce a new award
to recognize the achievements of “Mid-Career”
computational mechanicians. The organization
solicited the entire IACM community for suggestionsof names for the new award and received an overwhelming response. After considerable deliberationby the members of the Executive Council, a namefor the award has been determined. The new namewill be announced at the WCCM in Vancouver thissummer.
In closing, we are delighted to report on thesustained energy and enthusiasm within theinternational computational mechanics community,and look forward to seeing as many of you as
possible at the upcoming World Congress.
With warm regards,
John Dolbow and Kenjiro Terada

editorial

High-Performance Magnets- the power of simulations
byJörg Schröder &Maximilian Reichel
Institute of
Mechanics,
Department ofEngineering,
University ofDuisburg-Essen,j.schroeder@uni-due.de,maximilian.reichel@uni-due.de

Figure 1:
Global demand for
Nd2 Fe14 B magnets [1]ome of the major challenges facing
society today are the transition to
renewable energies and the move towards
e-mobility. The technical realization of thisrequires large quantities of efficient highperformance magnets, for wind turbines andelectric motors of electric cars, for example.
Magnets are therefore key materials for theenergy transition.

S

What are the essential mechanisms in thisenergy conversion technology?
If a relative movement takes place between
a magnetic field and an electrical conductor
within it, an electric current flows in the
conductor (when the circuit is closed). The
resulting voltage and current depend on the
speed of the relative movement and thestrength of the magnetic field. The speed
can be controlled using gears (this involves
mechanical losses!), and the strength ofthe magnetic field can be increased using
new high-tech magnets. The most efficientmagnets in the field of energy production are
currently neodymium-iron-boron (Nd2 Fe14 B)
magnets [2]. The diagram in Figure 1
illustrates the global demand for Nd2 Fe14 Bmagnets and provides a forecast up to 2030.

The electromobility sector is particularly
striking, with demand expected to increasesignificantly in the coming years. However,these magnets often consist to a significant
extent of heavy rare earth materials thatare not geopolitically available in sufficientquantities for all countries, see Figure 2.
The increasing demand for these so-called
hard magnets in e-mobility and energy
conversion raises the question of increasing
the efficiency of classic high-tech magnets(based on rare earth materials) or the
integration of substitute materials [3,4]. It is
not only the criticality of the materials themselves that plays an important role, but also
the conditions under which they are mined
and their availability on the global market.
Many rare earths are mined with severe
environmental impacts and often stem frompolitically autocratic countries, as shown in
Figure 2a) & b) [5,6]. Ideally, substitutematerials should be degradable in aminimally invasive way for humans and theenvironment and come from countries withguaranteed continuous accessibility to avoid
dependencies that could be used as politicalleverage.
The scientific/technical challenge:
The microstructural composition is decisivein optimizing the magnetic properties. The
so-called Brown's paradox [7], expresses
the potential for improving magnetic
performance. This paradox describes thedifference between hard magnets' theoreticaland experimental performance. The mostimportant parameters for assessing amagnet's performance are the coercive fieldstrength Hc and the so-called remanence Mr.

Figure 2:a) the reserves &b) the effective production of rare earths by country [5]iacm expressions 53/24 2

The effective magnetic field Heff represents
the influences on the switching behaviorof the magnetization vectors. Together
with the magnetic Gauss law Eq. (1), theGilbert equation forms the basis of thesimulations and enables the numericalanalysis of magnetic materials, such as thepolycrystalline structure shown in Figure 4.
This micromagnetic framework is a phasefield theory. However, within a Finite-Element
scheme the element sizes must be below theexchange length lexc. Hence, the resulting
equation systems can easily exceed several
millions of degrees of freedom [16].

Figure 3:
Illustration of theoretical(yellow) and experimentally(blue) observed hysteresis curves
An illustration of the hysteresis of a hardmagnet is depicted in Figure 3. The yellow
curve represents the theoretically attainablevalues determined by the crystal anisotropy,
while the blue curve represents experimentally observed quantities. The difference inthe coercivities offers considerable potential
for performance optimization. The reasonsfor this gap can be manifold: Non-magnetic
inclusions or impurities, misoriented domains,and non-decoupling grain boundaries
see, e.g., Kronmüller [8]. Ideally, the grain
structure of a sintered hard magnet consistsof many small ferromagnetic grains withuniaxial anisotropy separated by a nonferromagnetic intermediate layer. Reducing
grain size within the microstructure can
improve the magnetic properties [9].
However, if this non-ferromagnetic intermediate layer is missing, the nucleation of a grain
can lead to a cascade-like magnetization
reversal, as [9] demonstrates. As alreadymentioned, an optimal microstructure canlead to improved powerful magnets.
Simulations can assist in finding those
optimized microstructures.
Simulation of magnetic material behavior:
Numerical simulations are essential to makeprecise recommendations and predictions for
optimal microstructures. The framework of
micromagnetism has proven suitable for predicting magnetic behavior on a sub-micrometer scale. Magnetization vectors M=Msm are
introduced as continuum field variables fordescribing the magnetic domains and theirevolution [10]; Ms denotes the saturation
magnetization, and m is a unit vector [11, 12].
Gilbert's equation can approximate the time
evolution of the magnetization, Equation (2),where competing energy contributions are
introduced in the total magnetic enthalpyfunction ℋ [13, 14].
div 𝑩 = 0.

.

𝒎 = −μ0γ0𝒎 × 𝑯eff + α 𝒎 × 𝒎

Figure 4:a)-d) & f)-i) polycrystalline hard magnetic microstructure underalternating external magnetic field H3 and magnetization vectors m,
and e) effective hysteresis loop [15]An effective hysteresis loop of a polycrystalline microstructure is depicted in Figure 4.
The microstructure measures 600 nm in eachdirection. It comprises ten Nd2 Fe14 B grains
separated by a 12 nm thick Nd-rich grainboundary. The initial orientation of themagnetization vectors is aligned with theeasy-axis of the grains (Figure 4b)), which
deviates from the vertical axis by ±15°.
Without external magnetic influences, themagnetization distribution would remainunchanged. Applying an external alternating
magnetic field in the vertical direction resultsin switching the magnetizations within thegrains, see Figure 4. The paramagnetic layer
between the ferromagnetic grains causes amagnetic decoupling of the individual grains.
This is why we observe an independent
switching of the individual grains. If weplot the external magnetic field against thevolume average of the magnetization, we

with

𝑩 = 𝛍 ⋅ (𝑴 + 𝑯)

(1)

with

𝑯eff = −1

(2)

μ0𝑀𝑠

(∂𝒎ℋ − div ∂∇𝒎ℋ )3 iacm expressions 53/24

“... allows
conclusions to bemade about potential
improvements to themicrostructuralcomposition
without having tocarry out expensive
and time-consuming
experiments....”

obtain the magnetic hysteresis curve,
Figure 4e). Here, the switching of the grains
manifests itself in the form of small "steps";
the more steps are visible, the more grainsswitch independently of each other, see [9].
A magnetic decoupling generally leads toimproved coercive field strength and, thus, tostronger magnets. During the manufacturing
process of hard magnets, so-called
secondary phases can form, which cannegatively influence the magnet's effective
behavior. We evaluate seven grains
magnetically decoupled by a 5 nm thickNd-rich grain boundary as a simplified
microstructure. Furthermore, we consider
soft magnetic α-Fe inclusions within the hardmagnetic Nd2 Fe14 B grains as a secondary
phase to analyze this phenomenon [17].
No decoupling grain boundaries exist
between the secondary and hard magnetic
phases. The initial magnetization is parallelto the easy axis of anisotropy, shown in
Figure 5a) in the form of red arrows. A
switching of the magnetization is induced
by an alternating external magnetic field invertical direction. α-Fe has a lower coercivity
than Nd2 Fe14 B; thus, the nucleation of themagnetization reversal starts at these

Figure 5:
Magnetic characterization of microstructure with secondary phases.
a) geometry, b) effective hysteresis curves,c)-e) magnetization patterns [17]Figure 6:
Magnetic particle embedded within a ball-shaped free space:b) boundary value problem, dimension of system matrix fora) full resolved system and c) reduced system [23]iacm expressions 53/24 4

secondary phases [18]. Since there are no
separating grain boundaries between thesetwo phases, the magnetization reversal of thehard magnetic Nd2 Fe14 B also begins here,
followed by a complete reversal of the
microstructure [9]. Therefore, the earlymagnetization reversal of the hard magnetic
material can be attributed to premature
nucleation by the soft magnetic secondary
phase. This can be seen in the magnetization patterns, as well as in the effective
hysteresis (blue curve in Figure 5b)). An
analysis of the microstructure without secondary phases results in the red hysteresis
in Figure 5b). The comparison of the twohysteresis curves clearly shows the negative
influence of the secondary phases in the
microstructure, with the coercive fieldstrengths differing by around 2 Tesla.
Demagnetization fields:
Magnets generate magnetic fields inside andoutside the magnetic solid. These magnetic
fields are the demagnetization or stray fields
and significantly impact the magnetic
response. Depending on the application,
the free space surrounding the magnet must
be considered to predict the evolving strayfields. The stray field intensity decays withincreasing distance to the magnetic solid.
Various approaches for the computation ofstray fields can be found in the literature,e.g., the BEM [21] or the SBFEM [22]. A
brute force but very straightforward approachis discretizing a large but finite fraction of thefree space with finite elements, as presented
in Figure 6b). A rule of thumb estimates thefree space to be at least five times larger
than the magnetic solid [20]. The considered
problem requires the prescription of boundary
conditions at infinity [19]. This straightforward
approach can lead to significantly larger
system matrices and unnecessary longcomputing times. Another efficient andstraightforward approach is the condensationof the surrounding external space onto thesurface of the volume (magnet) of interestby a static condensation (Schur complement)[23]. With this approach, huge and densely
meshed outer space areas can be treatedvery efficiently, as the outer space only
needs to be considered within a preliminary
condensation. The condensation of the outerspace onto the surface of the inner space
to be analyzed leads to system matricesthat resemble the system matrix shown in
Figure 6c) in appearance and density.
The comparison of the two matrices in
Figure 6a) shows a significant reduction in
the dimensions of the condensed matrix
compared to the entire matrix. The resulting
condensed matrix is significantly denser
compared to the initial FEM system matrix.

Nevertheless, a significant speed-up canbe observed depending on the system,
especially if many time steps are required.
Conclusion:
Magnetic materials play an important rolein our daily lives and are essential for technological progress. A deep understanding of
the underlying magnetic phenomena on amathematical and physical level is required
to drive this progress further. The behaviorof magnetic materials can be calculatedusing Maxwell's and Gilbert's equations,which enable in-silico characterization.
This allows conclusions to be made about
potential improvements to the microstructuralcomposition without having to carry out
expensive and time-consuming experiments

each time, which can often only provide
limited insights. Combining experiments
and numerical calculations opens up the
possibility of making the development
process for magnetic materials more
efficient and precise.
Acknowledgment:
We gratefully acknowledge the financial support of the German
Research Foundation (DFG) in the framework of the CRC/TRR 270,
project A07 “Scale-bridging of magneto-mechanical mesostructuresof additive manufactured and severe plastically deformed materials,”
Project Number 405553726. We also gratefully acknowledge thecomputing time granted by the Center for Computational Sciences
and Simulation (CCSS) of the University of Duisburg-Essen andprovided on the supercomputer magnitUDE (DFG grants INST
20876/209-1 FUGG, INST 20876/243-1 FUGG) at the "Zentrum fürInformations-und Mediendienste (ZIM)." lReferences:[1] K. Hussey, D. Billington, Definitive Feasibility Study on Arafura's Nolans Project, Arafura Resources Ltd., 2019,https://www.arultd.com/wp-content/uploads/2023/01/Nolans_DFS_Summary_Report_-_Final_for_website.pdf[2] O. Gutfleisch, M.A. Willard, E. Brück, C.H. Chen, S.G. Sankar, J.P. Liu, Magnetic Materials and Devices for the
21st Century: Stronger, Lighter, and More Energy Efficient, Adv. Mater., 23:821-842, 2011.
[3] P. Mcguiness, O. Akdogan, A. Asali, S. Bance, F. Bittner, J.M.D. Coey, N.M. Dempsey, J. Fidler, D. Givord,
O. Gutfleisch, M. Katter, D. Le Roy, S. Sanvito, T. Schrefl, L. Schultz, C. Schwöbl, M. Soderžnik, S. Sturm,
P. Tozman, K. Üstüner, M. Venkatesan, T.G. Woodcock, K. Zagar, S. Kobe, Replacement and Original Magnet
Engineering Options (ROMEOs): A European Seventh Framework Project to Develop Advanced Permanent
Magnets Without, or with Reduced Use of, Critical Raw Materials, JOM, 67(6):1306-1317, 2015.
[4[] A. Kovacs, J. Fischbacher, M. Gusenbauer, H. Oezelt, H. Herper, O. Vekilova, P. Nieves, S. Arapan, T. Schrefl,
Computational Design of Rare-Earth Reduced Permanent Magnets, Engineering, 6:148-153, 2020.
[5] A. Rostek-Buetti, Wenn Seltene Erden zur "Waffe" werden, Deutsche Welle, 2019. https://www.dw.com/de/
wenn-seltene-erden-zur-waffe-werden/a-49082724[6] Bertelsmann Transformationsindex, 2022, https://bti-project.org/de/?&cb=00000[7] W.F. Brown, Virtues and weaknesses of the domain concept, Rev. Mod. Phys., 17:15-19, 1945.
[8] H. Kronmüller, Theory of Nucleation Fields in Inhomogeneous Ferromagnets, phys. stat. sol. (b),144:385-396, 1987.
[9] M. Soderžnik, H. Sepehri-Amin, T.T. Sasaki, T. Ohkubo, Y. Takada, T. Sato, Y. Kaneko, A. Kato, T. Schrefl, K. Hono,
Magnetization reversal of exchange-coupled and exchange-decoupled Nd-Fe-B magnets observed bymagneto-optical Kerr effect microscopy, Acta Mat., 135:68-76, 2017.
[10] L. Landau, E. Lifshitz, On the theory of the dispersion of magnetic permeability in ferromagnetic bodies,in L.P. Pitaevski, editor, Perspectives in Theoretical Physics, pages, 51-65, Pergamon, 1992.
[11] M. Reichel, B.-X. Xu, J. Schröder, A comparative study of finite element schemes for micromagnetic
mechanically coupled simulations, J. Appl. Phys., 132:183903, 2022.
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efficient permanent magnets, J. Phys. D: Appl. Phys., 51:193002, 2018.
[17] M. Reichel, P. Groche, O. Gutfleisch, J. Schröder, Impact of soft magnetic α-Fe in hard Nd2 Fe14 B magnetic
materials: A micromagnetic study, Proc. Appl. Math. Mech., 23:e202300104, 2023.
[18] O. Gutfleisch, Controlling the properties of high energy density permanent magnetic materials bydifferent processing routes, J. Phys. D: Appl. Phys., 33:R157-R172, 2000.
[19] C. Abert, L. Exl, G. Selke, A. Drews, T. Schrefl, Numerical methods for the stray-field calculation:
A comparison of recently developed algorithms, J. Mag. Mag. Mat., 326:176-185, 2013.
[20] Q. Chen, A. Konrad, A review of finite element open boundary techniques for static and quasi-static
electromagnetic field problems, IEEE Trans. Mag., 33:663-676, 1997.
[21] T.R. Koehler, Hybrid FEM-BEM method for fast micromagnetic calculations, Physica B, 233:302-307, 1997.
[22] C. Birk, M. Reichel, J. Schröder, Magnetostatic simulations with consideration of exterior domains using
the scaled boundary finite element method, Comput. Methods Appl. Mech. Engrg., 399:115362, 2022.
[23] J. Schröder, M. Reichel, C. Birk, An efficient numerical scheme for the FE-approximation of magneticstray fields in infinite domains, Comp. Mech., 70:141-153, 2022.
5 iacm expressions 53/24

Seismic Metamaterials:
A Novel Approach for Alleviating Earthquake Damages
byC.W. Lim*,1,
Guifeng Wang1& Zhifei Shi2
1
Department ofArchitecture & Civil
Engineering,
City Universtyf
Hong Kong,
Kowloon, P.R. China
2
Institute of Smart
Materials & Structures,
Beijing Jiaotong
University, P.R. China
bccwlim@cityu.edu.hk

hononic crystals (PCs) and acoustic
metamaterials have raised intensive andextensive interests of many researchers in
the past few decades. PCs are artificiallywell-designed periodical systems consistingof elastic scatters embedded in a host matrix
with a high impedance difference between thematrix and scatters. In the early days, PCs
first originated from electronic crystals andphotonic crystals for electromagnetic wave
manipulation. In a very early monograph,
Brillouin [1] indicated periodical elastic wave,
electromagnetic wave, and electrodes in the
crystal can be treated as analogical systems
as they have some common properties like
Brillouin zone, Bragg scattering, etc. The
properties are produced by diffraction andreflection of light, acoustic, or elastic waves indifferent crystals and periodical structures.
Therefore, they are independent of wave format. Kushwaha et al. [2] compared the properties of electronic crystals, photonic crystals,
and phononic crystals. Although there aredifferences in many aspects including lattice
constant, material properties, model differential equation, spectral region, etc., theresearch on electronic crystals and photonic
crystals can supplement useful information fordevelopment of PCs because they share similar mathematical and modeling expressions.

P

Generally, there are two main mechanisms togenerate bandgap, Bragg scattering and local
resonance. Most of the previous studies
focus on Bragg scattering because the designfor Bragg scattering mechanism is generally
simpler and easier. When lattice constant of
PCs is comparable to wavelength, the reflected wave will possibly intervene negatively inthe neighboring unit cells which produces abandgap. However, it is hard to fabricate
PCs with low-frequency bandgap as it
requires enormous sizes of unit cells. The
application of PCs is thus highly restricted.
Liu et al. [3] first reported low-frequency
bandgap based on local resonance mechanism. The corresponding wavelength of the
new bandgap is two orders of magnitudelarger than lattice constant, which breaks thesize restriction of Bragg scattering bandgap.
Since then, artificial structures that embed
local resonance units by sub-wavelength
in the periodical matrix have been widely
studied for vibration control, noise control,
acoustic black hole, waveguiding, acoustic
cloak, etc.
Elastic wave metamaterials can be classified
as a class of specific acoustic metamaterials.
Compared with light waves, elastic waves
have lower frequencies and longer wavelengths. Therefore, with the advantages of
iacm expressions 53/24 6high efficiency, lightweight, wide bandgap,
and low-frequency, elastic wave metamaterials have attracted much interest ofresearchers. Inspired by the capabilities
of artificial structures above, a class ofsuper-low frequency metamaterials,
apparently another specific stream of elastic
wave metamaterials, has been comprehensively studied in the aspects of seismic wave
shading, seismic isolation, and many otherultra-low frequency ranges. Seismic waves
originate from the energy-releasing procedureof the earth surface or near blow. The waves
show the characteristics of long wavelength,
long-distance propagation, and other peculiar
wave response. Compared with normal
stress waves, seismic waves are more
powerful and destructive. Therefore, manyfactors like nonlinear constitutive of materials,
plastic response of structures need to beconsidered when designing a structure
against seismic waves.
The traditional seismic isolation methods
depend on the strength of building, structuraldesign, as well as plasticity and elasticity ofmaterials such as increasing the structure
stiffness, introducing joint and foundation
flexibility, etc. These methods have two maindrawbacks. On one hand, the protection oftarget building is passive, on the other hand,the entire building structures have to be modified thus causing possibility of disturbing thestructural integrity and large displacement offoundation. Subsequently, researchersbegan to explore whether seismic wave
propagation can be designable, tunable,
and controllable. While it may not work if
traditional structure isolation design methods
are considered, it is very possible if acoustic
materials and seismic metamaterials areused. With its superiority in manipulating
seismic waves, therefore, these ultra-low
frequency metamaterials become a potential
design candidate for a novel engineering
approach for alleviating earthquake damages.
Development of Seismic Metamaterials
Basic research situation
The basic design idea of seismic metamaterials is changing the local character of groundsurface by arranging different structuralcomponents in a sub-wavelength scale.
Generally, seismic waves are damaging tostructures and buildings via the following
mechanisms (Figure 1): soil-foundationstructure [4]. Unlike any traditional isotropic
medium, foundation soil has many complex
phenomena like nonlinear behavior, whichmakes the design and experiment on seismic
metamaterials very complicated.

From the database of Web of Science,research papers relevant to seismic metamaterials only contribute to approximately 8-9%of works on elastic wave metamaterials. Oneof the main reasons is the enormous size ofseismic metamaterials that significantly
increases the difficulty of any experiments.
The other is related to geological conditionsof ground surface which complicate the elastic wave field. Therefore, most of the current
research is limited to only theoretical analysis
and numerical simulation. Experiments,
especially full-scale experiments, have been
extremely rare. There are mainly two
approaches in theoretical analysis: (i) the dispersion relation analysis with periodical conditions using methods like transfer matrix
method (TMM), plane wave expansion(PWE) method, finite element method (FEM),
etc., and (ii) designs of negative stiffness
dynamic vibration absorber or negative bulk
modulus chiral structure based on local resonance mechanism. Numerical simulation
usually requires the use of commercial finite
element software such as COMSOLMultiphysics, ANYSYS or others to derive thedispersion relation and wave propagation
modes.
Theoretically, it is practicable to control the
propagation of seismic wave via designing
anisotropic medium artificially. The idea ofseismic metamaterials started to attract theattention of common people after the fullscale experiment conducted by Brûlé in 2014[5]. Periodically distributed holes were drilledin the experiment and the area was treatedas an enormous metamaterial. They proved,in theory, numerical analysis and experimentthat the surface seismic wave around 50 Hz
can be effectively filtered by the periodical
structures. Indeed, the idea of using metamaterials in civil engineering to manipulate
seismic waves or wave propagation due toambient vibration was proposed a few years
earlier. Shi and his research team proposed
the periodic foundation [6] and periodic wave
barriers [7] in 2010 and 2013, respectively,
and verified their effectiveness experimentally[8]. Using materials common in civil engineering, they designed unit cells that consistsof steel circular cylinders (0.245m radius) andrubber coating (0.245m thick) embedded inconcrete as shown in Figure 2(a), andobtained the complete frequency bandgap
ranging from 14.51 Hz to 20.67 Hz as shownin Figure 2(b) [6].

Figure 1:
Propagation mechanism of seismic wave [4]environmental signal propagating along
ground surface [9]. They constructed alatticed structure by periodically drilling
cylindrical holes on structural soil and control
the frequency of excitation wave below 10
Hz. The result showed the characters ofseismic metamaterials like effective dynamic,
anisotropic properties can be fully exploited
to control seismic surface waves, which issimilar to the induction of negative reflective
index in elastic wave metamaterials. In
addition, some seismic metamaterial models
were proposed at this period, for example,
composite layered structures with attenuation
zone (Figure 3a), negative Poisson’s ratio
seismic metamaterials (Figure 3b), seismic
metamaterial clamped to bedrock (Figure 3c),and low frequency and large-scale phononic
crystals (Figure 3d).

Figure 2:(a) Unit cell configuration.
(b) In-plane elastic modesof a square lattice of steel
cylinder coated with rubberpolymer in a concrete
matrix. The inset shows
the first irreducible
Brillouin zone [6]Figure 3:(a) Composite layered structures with attenuation zone [10]; (b) negative
Poisson’s ratio seismic metamaterials [11]; (c) seismic metamaterials clamped to
bedrock [12]; and (d) low frequency and large-scale phononic crystals [13]Unfortunately, there are two main drawbacks:(i) any actual seismic wave frequency isalways lower than 20 Hz; and (ii) theexperiments did not consider the discrepancy
of soli properties at different areas.
Nevertheless, the works still verified thefeasibility of applying seismic metamaterials
for anti-seismic structures and provided
precious data on filtering low-frequency
waves. In 2017, Brûlé designed anotherlarge-size experiment to study the destructive
7 iacm expressions 53/24

Figure 4:
Trees as resonators with soil and tree properties [17]Figure 5:(a) The geometry &material parameters;(b) increasing resonatorheight relative to thedirection of incident
Rayleigh wave; &(c) decreasing
resonator height relative
to the direction of incident
Rayleigh wave [18]Seismic metamaterials in nature
The laws of nature always instil new andinnovative ideas to researchers. Neil et al.
[14] reported that moth wing is a natural
metamaterial. This phenomenon is generated by the low-frequency resonance of trees,
which is similar to the local resonance inacoustic metamaterials. Although the excitation frequency was lower than 150 Hz, they
indicated the resonance frequency was
inversely proportional to the resonator length.
Therefore, it is possible to design a structure
whose resonance frequency is lower than 10
Hz and apply to seismic Rayleigh wave
attenuation. The idea raises much interest of
the researchers in considering forest as apossible class of seismic metamaterials.
Subsequently, Lata et al. [15] introduced a

new remote sensing approach by exploiting
the geometric phase which is generated byscattering of trees in forest environments.
Muhammad et al. [16] reported that Rayleighwave experiences strong attenuation whenthe vertical component of Rayleigh wave iscoupled with longitudinal resonant modes oftrees. Consequently, trees can be treated asa natural way of providing local resonancemetamaterials and the approach is able topresent wide low-frequency bandgap upon
structural optimization. However, the said
work only simplified trees as vertical columntype resonant units without considering othertree properties like branches, leaves, roots,
etc. As shown in Figure. 4, Muhammad
and Lim [17] published a further work on theinfluence of bulky branches connected withmain tree stem. By analyzing the dispersion
relation, they reported that the structure had
a wide bandgap at around 20 Hz.
Artificial seismic metamaterials
Artificial metamaterials protect target
structures by forming a shield whosebandgap range is close to seismic wave
dominant frequency ranges. Considering
only the vertical dimension, an outer shieldseismic metamaterial can be further divided
into surface structure, which is similar toforest metamaterials, and undergroundartificial structures. In 2016, Colombi et al.
[18] designed a metasurface at thegeophysical scale which is made of spatially
graded vertical subwavelength resonatorson an elastic substrate (Figure 5). They firststudied the effects of increasing resonatorheight relative to the direction of incident
Rayleigh wave and observed “rainbow
trapping”. Comparatively, when resonatorheight decreases relative to the direction ofincident Rayleigh wave, the Rayleigh wave
can be transferred into shear wave.
However, the upper ground structures usuallyoccupy a lot space and areas surrounding
the buildings, which is not acceptable inurban construction. For example, Ni et al.
[19] designed a novel shallow buried periodic
in-filled pipe barrier (Figure 6). It reported
complex dispersion analysis for evaluating
the decay of surface waves and the influenceof material damping. By finite element
numerical simulations and laboratory scaled
experiments, the proposed periodic in-filledbarrier shows excellent performance in
low-frequency surface wave attenuation.
The novel wave barriers are suitable not
only for both passive and active isolations,but the attenuation zones could be further
enhanced via a gradient layout of the in-filledpipes if there is limited barrier width.
Figure 6:
2D plane strain models of shallow buried(or underground) periodic in-filled pipe barriers.
(a) Transmission model; and(b) typical unit cell for dispersion analysis;(c) meshing details of the unit cell [19]iacm expressions 53/24 8

Figure 7:
Horizontal and vertical dynamic responses at the
top of the frames under the 1975 Orovilleearthquake. (a) Test setup,(b) Horizontal acceleration response under the1975 Oroville earthquake, and(c) Vertical displacement time history under the1975 Oroville earthquake [8]Experiment Methods
Lab-scale experiments
Because of huge volumes and sizes,
complex construction area, and extremely
high costs, scaled-model experiments
instead of full-scale experiments, aremore favorable in the study of seismic
metamaterials. In 2012, Xiang et al [8]presented an experimental study on theperformance of a layered periodic foundation
as shown in Figure 7. It was found that the
reduction of peak horizontal acceleration
can be as much as 50% and the verticalresponse can be reduced by 15.9% when the
excitation frequency falls into the bandgaps.
Ni et al. [19] (Figure 8) conductedlaboratory scaled experiments to verify thesurface wave attenuation efficiency using
shallow buried periodic in-filled pipe barrier.
A concrete container with 3.3m×2.3m×2m
in dimension and a soft sponge were used
to wrap around the inside walls of theconcrete container to reduce undesired
wave reflection. The experimental setup
shown in Figure 8 included function
generator, signal acquisition, amplifierand computer. The periodic in-filled pipebarriers were not fully buried undergroundto clearly demonstrate the shallow burying
characteristics.
Full-scale experimentsBrûlé et al. [5] designed the first full-scale
experiment for seismic metamaterials.
As shown in Figure 9, 3-row by 10-column
holes were drilled with diameter and depthof 0.32m and 5m, respectively, and with
1.73m separation intervals. The frequencyof vibrating source in the experiment was
50Hz, while the lateral amplitude was
0.014m. The experiment results verified
the capability of Bragg scattering ofmetamaterials for effectively attenuating theelastic seismic wave around 50Hz.
Huang et al. [20] conducted anotherexperimental study on the wave isolation
performance of periodic barriers. They
employed a very advanced state-of-the-art
high-force triaxial (T-Rex) shaker truck to
generate excitation. Although researchers
observe the importance and needs offull-scale experiments, the difficulty andcomplexity encountered still discourage
many researchers. Related works are stillrare and further experimental works arevery much required.

Figure 8:
Experiment setup and specimens of in-filled pipes for vibration mitigation.
(a) Experimental setups for testing surface wave attenuation (periodic infilled pipe barriers are not fully buried); (b) schematic of sandbox andexperimental layouts; and (c) details of in-filled pipes [19]Conclusion and Prospect
Structural vibration control has beendeveloped for decades of years. The
vibration isolation techniques like active
control, passive control, hybrid control
have received extensive attention andthere are already many research outcomesthat can be applied to actual practical works.
By contrast, most research on seismic
metamaterials focuses on theory andnumerical analysis. Full-scale experiments
are relatively very rare, which causes thevery slow development of real and engineering applications of seismic metamaterials.
The factors listed below may provide ideas
for future study.

Figure 9:(a) A full-scale experimentof seismic metamaterials:(a) wave source; (b)sketch of experiment; and(c) picture of the experiment [5]Geological
Conditions. Many
researchers treat thegeological condition
as a single layer
soil. The complexityof soil conditions
such as multilayer,
underground waterlevel, bedrock
position, soil bearing
capacity should beconsidered.

9 iacm expressions 53/24

Soil-structure Dynamic Interaction. The dynamic interaction between soil and structure has been studied in
geotechnical engineering for decades of years. However, this approach has been rarely considered in designingseismic metamaterials and related structures.
Loading Capacity. Most of the existing metamaterials only consider seismic wave isolation but ignore their loading
capacity and stability of the entire structure.
Material, Geometric and Inertia Nonlinearities. The current theoretical and simulation works of seismic metamaterial
are based on linear assumptions while nonlinearities with respect to material, geometric and inertia properties are nottaken into consideration at all. Although experiment is the most important approach for the exploration of seismic
metamaterials, the development of more precise theoretical and numerical models taken in account the various aspectsof nonlinearities is, by all means, indispensable.
Besides, the application of other PCs properties such as negative refraction, on seismic metamaterials is still unexplored.
The application of deep learning, machine learning for optimizing seismic metamaterials is still absent in general.
Overall, the novelty, reliability, and applicability of seismic metamaterials provide new innovative ideas and great
potentials for engineering seismic isolation applications. In conclusion, any research in seismic metamaterials should
be fully promoted, encouraged, and financed. l“Full-scale experiments are relatively ... rare,
which causes ... very slow development .... ”
References:[1]

Brillouin L, Wave propagation in periodic structures: electric filters and crystal lattices. Vol. 2. 1953:
Dover publications.
[2] Kushwaha MS, Halevi P, Dobrzynski L, Djafarirouhani B. Acoustic Band-Structure of Periodic Elastic
Composites. Phys Rev Lett 1993;71:2022-2025.
[3] Liu Z, Zhang X, Mao Y, Zhu Y, Yang Z, Chan CT, Sheng P. Locally resonant sonic materials.
Science 2000;289:1734-1736.
[4] Matsumoto M, Arakawa T, Kitayama T, Mori F, Okuda H, Furumura T, Nakajima K. Multi-scale coupling simulationof seismic waves and building vibrations using ppopen-hpc. Procedia Computer Science 2015;51:1514-1523.
[5] Brûlé S, Javelaud E, Enoch S, Guenneau S. Experiments on seismic metamaterials: molding surface
waves. Physical Review Letter 2014;112:133901.
[6] Jia G, Shi Z. A new seismic isolation method and its feasibility study. Earthquake Engineering andEngineering Vibration 2010;9(1):75-82.
[7] Huang J, Shi Z. Attenuation zones of periodic pile barriers and its application in vibration reduction forplane waves, Journal of Sound and Vibration 2013;332:4423-4439.
[8] Xiang H, Shi Z. Wang SJ, Mo YL, Periodic materials-based vibration attenuation in layered foundations:
Experimental validation Smart Material and Structures 2012; 21:112003.
[9] Brûlé S, Javelaud EH, Enoch S, Guenneau S. Flat lens effect on seismic waves propagation in the subsoil.
Scientific reports 2017;7:1-9.
[10] Casablanca O, Ventura G, Garescì F, Azzerboni B, Chiaia B, Chiappini M, Finocchio G. Seismic isolation ofbuildings using composite foundations based on metamaterials. Journal of Applied Physics 2018;123:174903.
[11] Ungureanu B, Achaoui Y, Enoch S, Brûlé S, Guenneau S. Auxetic-like metamaterials as novel earthquake
protections. EPJ Applied Metamaterials 2016;2:17.
[12] Achaoui Y, Antonakakis T, Brûlé S, Craster R, Enoch S, Guenneau S. Clamped seismic metamaterials:
ultra-low frequency stop bands. New Journal of Physics 2017;19:063022.
[13] Lee D, Oh JH, Kang IS, Rho J. Seismic phononic crystals by elastodynamic Navier equation.
Physical Review E 2019;100:063002.
[14] Neil TR, Shen Z, Robert D, Drinkwater BW, Holderied MW. Moth wings are acoustic metamaterials.
Proceedings of the National Academy of Sciences 2020;117:31134-31141.
[15] Lata TD, Deymier PA, Runge K, Le Tourneau F-M, Ferrière R, Huettmann F. Topological acoustic sensing of
spatial patterns of trees in a model forest landscape. Ecological Modelling 2020;419:108964.
[16] Muhammad, Wu T, Lim C.W. Forest Trees as Naturally Available Seismic Metamaterials: Low Frequency
Rayleigh Wave with Extremely Wide Bandgaps. International Journal of Structural Stability and Dynamics
2020;20:2043014.
[17] Muhammad, Lim C.W. Natural seismic metamaterials: the role of tree branches in the birth of Rayleighwave bandgap for ground born vibration attenuation. Trees 2021;1-17.
[18] Colombi A, Colquitt D, Roux P, Guenneau S, Craster RV. A seismic metamaterial: The resonant metawedge.
Scientific reports 2016;6:1-6.
[19] Ni A, Shi Z, Meng Q, Lim C.W., A novel buried periodic in-filled pipe barrier for Rayleigh wave attenuation:
Numerical and experimental investigation, Engineering Structures 2023;297:116971.
[20] Huang HW, Zhang B, Wang J, Menq F-Y, Nakshatrala KB, Mo Y, Stokoe K. Experimental study on wave
isolation performance of periodic barriers. Soil Dynamics and Earthquake Engineering 2021;144:106602.
iacm expressions 53/24 10

Structural Dynamics
Peretz P. Friedmann, George A. Lesieutre
and Daning Huang
Cambridge University Press, UK, 2023

ISBN:

B
O
O
K

1108842488, 564 pages, hard cover, $79 (List Price)

Contents:
Preface; 1: Review: Dynamics of Single Degree of Freedom Systems;
2: Principles of Structural Dynamics; 3: Natural Modes of Vibration: Continuous
Systems; 4: Finite Element Method and Model Reduction; 5: Natural Modes ofVibration: Discrete Systems; 6: Damping; 7. Dynamic Response of Structures;
8. Structural Dynamics of Rotating Systems; 9. Stability and Response Problemsof Periodic Systems; Appendix A: Linear Algebra and Matrix Methods; Appendix B:
Laplace Transforms; Appendix C: Gaussian Quadrature; Appendix D: Pseudocode
for Describing Algorithms; Index.
This book is part of the Cambridge Aerospace Series, edited by Wei Shyy andVigor Yang. The first author is a chaired professor at the Department of Aerospace
Engineering at the University of Michigan. The other two authors are faculty members
at the Department of Aerospace Engineering at Penn State University.
This is an excellent and comprehensive general text on structural dynamics, with an
added flavor in aerospace engineering and in computational mechanics. It includes,
in addition to standard material, some advanced topics that are not often found in otherbooks on structural dynamics. Most notable in this regard are Chapter 8 on rotating
systems and Chapter 9 on stability and response of periodic systems. It is mostappropriate that these subjects are included, as the first author is a well-known
authority in the field, who has made pioneering contributions to it. However, these
are not the only subjects that are unique to this book. I would also place Chapter 6
on damping in this category, as well as the part of Chapter 5 that discusses various
advanced methods for the solution of vibration eigenvalue (EV) problems, and thepart of Chapter 7 on time integration methods. The latter two subjects can certainly
be found in some texts dedicated to computational methods, but I am not aware of
any other book on structural dynamics that discusses them in such a thorough andmodern way. A variational approach is taken in many cases to derive governing
equations, boundary conditions and solutions.

R
E
V
I
E
W

The book is very well structured and edited, and easy to read, with many fineillustrations and many worked examples. At the end of each chapter there is abibliography list and well-thought problems.
Algorithms are nicely written in pseudo-code.
Available online material includes a solution
manual, the figures and tables appearing
in the book, and MATLAB and Python codes.

by

Dan Givoli
Technion Israel Institute ofTechnology
givolid@technion.ac.il

P.P. Friedmann

G.A. Lesieutre

D. Huang

11 iacm expressions 53/24

Chapter 1 is a standard treatment of single degree-of-freedom (SDOF) systems.
Chapter 2 reviews various basic principles in structural dynamics. This chapter
includes a discussion on generalized coordinates, a brief introduction to the calculusof variations, virtual work, Hamilton’s principle (including for non-conservative systems,e.g., with follower forces), and Lagrange’s equations, among other subjects.
Chapter 3 already discusses continuous systems. Many books and courses introduce
multi-DOF discrete systems before continuous systems, as studying the treatment ofa system of ODEs is regarded as easier for the student than the treatment of a PDE.
However, it is a sensible pedagogical approach to discuss first continuous systems(after the unavoidable SDOF systems) and only later discrete systems (here in
Chapter 5), since the latter are generated by the approximation of continuous systems,e.g., by the Finite Element (FE) method. For the advanced audience that this bookis intended for, I believe that the approach taken here is more suitable.
Chapter 3 discusses modal analysis of beams and plates. In addition to vibration of
the classical Bernoulli-Euler beams and Kirchhoff plates, the chapter covers vibration
modes of Timoshenko beams and the von Kármán plate theory, involving geometricalnonlinearity. Both analytical solutions and numerical methods are discussed, the latterbeing based on the Rayleigh-Ritz method and the Galerkin method.
Chapter 4 discusses the FE method for rod, beam (both Bernoulli-Euler andTimoshenko) and rectangular plate structures. Section 4.9 is dedicated to model
reduction, and discusses various methods like CMS, truncated normal modes,
Guyan reduction and the Craig-Bampton method.
Chapter 5 introduces modal analysis of discrete systems. The generalized EV
problem is discussed in detail, and methods of its solution are nicely surveyed.
These include power iteration, inverse iteration, Jacobi’s method, QR (the theoreticaland practical versions), subspace iteration and the Lanczos algorithm. Nonsymmetric
EV problems are also briefly discussed.
Chapter 6 is devoted to the subject of damping, and includes discussions on damping
representation via a complex stiffness, and on Rayleigh damping. As written on
p. 318, “no physical justification is provided” for Rayleigh damping, and for extreme
frequencies (on both sides of the spectrum) this damping model provides poor
predictions. Indeed, one has to admit that Rayleigh damping is more of a practicaland numerical convenience than anything else. Chapter 6 also includes sections
on viscoelastic materials (with a nice discussion on hereditary integrals), and on
Coulomb friction.
Chapter 7 covers the time-dependent
response of structures, and approximate
time-integration methods. Implicit andexplicit methods are discussed as well as
adaptive time-stepping. The Newmark
family of algorithms is introduced andthe properties of its members are
discussed; see Figure 1.

Figure 1:
Stability region of different
Euler time-integration methods
This is Figure 7.7 in the bookiacm expressions 53/24 12

Figure 2:
Comparison of Newmark and Generalized-α(HHT) methods
This is Figure 7.21 in the book

The Generalized-α (HHT) method is presented as an
improvement for the Newmark method; see Figure 2.
The chapter ends with a short section on implicit
time-integration for nonlinear problems.
Chapter 8 is about rotating systems, with obvious
application to the dynamics of shafts, turbine blades,
propeller blades and helicopter rotor
blades. This chapter focuses on the presentationof the governing equations and the solution of EV
problems for linear rotating systems. Section 8.3 discusses the equations of motion ofa rotating Bernoulli-Euler beam, with a variational approach. The effect of the Coriolis
acceleration is nicely presented. Section 8.8 introduces a blade with a cross section
oriented at some angle with respect to the plane of rotation (e.g., due to aerodynamic
design). In such a configuration there is coupling between the in-plane and out-of-planerotations.
Chapter 9 discusses stability and response of periodic systems. Section 9.2 presents
a simple illustrative model of a beam under time-periodic axial load. The authors show
how this configuration leads to the Mathieu equation, if the load is sinusoidal, and to
Hill’s equation in the more general periodic case. Incidentally, in the mathematical
literature, the name Mathieu equation usually relates to the specific loading termcos(2t), while here the more general term cos(θt) is considered. The regions of stability
and instability of the Mathieu equation are graphically shown in the so-called Ince-Strutt
diagram. See Figure 3. Section 9.5 discusses the Floquet theorem, which provides theform of the transformation matrix for periodic systems. Its main importance is in that it
leads to an EV problem whose solution determines the stability of the system.
No book is flawless, and this book is no exception. There are some typos or
unexplained notation in some places, and at least one concept that could be explained
more clearly. Hopefully these will be corrected in the second edition of the book. Also,
I found it slightly strange that what seems to be a set of two equations written one after
the other (sometimes with two different equation numbers) are in fact the same equation
written differently. It would have been better to insert some text (e.g., “namely”)
between the two equations. However, all these “flaws” are very minor, and do not poseany difficulty in reading and understanding the book.
In summary, this is a highly recommended text on
structural dynamics, which is unique in several
respects as indicated above. It will serve as avaluable source for advanced students andstructural engineers who are not afraid fromserious computing, as well as for members of thecomputational mechanics community. l

Figure 3:
The Ince-Strutt diagram showing regions ofstability and instability for the Mathieu equation.
A black-white version of this diagram appears as
Figure 9.2 in the book. The color version shown
here is taken from the paper by H. Moideen,
J.M. Falzarano and S.A. Sharma,
Ocean Systems Eng., Vol. 2, pp. 239-255, 2012,published by Techno-Press Journals
13 iacm expressions 35/24

The Argentine Association for Computational Mechanics

MECOM 2023
XXXIX Argentine Congress on Computational Mechanics
I Argentine – Uruguayan Congress on Computational Mechanics
Concordia, Entre Ríos, Argentina – Salto, Salto, Uruguay
6 to 9 November 2023
he XXXIX Argentine Congress on Computational Mechanics and theI Argentine –Uruguayan Congress on Computational Mechanics (MECOM 2023) took placefrom November 6th through November 9th, 2023, in the cities of Concordia, Entre
Ríos, Argentina and Salto, Salto, Uruguay. This new edition of the annual AMCA
meeting and the first binational Congress was organized by the Concordia Regional
Faculty of National Technological University (FRCon -- UTN), Argentina, and theWater Department at the Northern Regional University Center (CENUR) of the
University of the Republic, Uruguay, together with the Argentine Association for
Computational Mechanics (AMCA).

TThe Organizing Committee included Eng.
José Jorge Penco (Chairman Argentina),
and Prof. Pablo Gamazo (Chairman Uruguay).
The Scientific Committee was chaired by Prof.
Mario Storti with Prof. Pablo Ezzatti and Prof.
Eugenia Garat as Co-Chairmen.
The Congress hosted six Invited Lecturers,
Prof. Sergio Idelsohn (International Center for
Numerical Methods in Engineering, CIMNE,
Figure 1:
Barcelona, Spain), Prof. Rainald Löhner
Opening Ceremony, from left to right:(George Mason University, USA), Prof.
Prof. Pablo Gamazo (Uruguayan chair of the congress),
Cristian Gebhardt (Geophysical Institute (GFI)
Prof. Víctor Fachinotti (President of AMCA),
and Bergen Offshore Wind Centre (BOW),
and Ing. José Jorge Penco (Argentinian chair of the congress)
University of Bergen, Norway), Prof.
Marcela Cruchaga (Departamento de Ingeniería Mecánica Universidad de Santiago
de Chile (USACH), Santiago, Chile), Prof. Marco Dentz (Spanish National ResearchCouncil (IDAEA-CSIC), Barcelona, Spain), and Prof. Adrian Lew (Department of
Mechanical Engineering, Stanford University, Stanford CA, USA).
Full-length papers were submitted to a peer
review process prior to publication. Accepted
papers have been published in the proceedings
series “Mecánica Computacional”, which are
openly available at the following website:
http://www.amcaonline.org.ar/mcamca.
The Conference consisted of 20 TechnicalSessions with more than 220 papers presented.
A special session was devoted to undergraduate students, with awards for bestposters, that were granted to:
1. Delfina Criado, from the Applied
Multiphysics Research Group (GIMAP) of
the National Technological University at
Figure 2:
Bahia Blanca, Argentina.
All conference participants at the UTN-FRCon main entrance
2. Martín Zanatta, from National Technological
University (UTN) at Santa Fe, Argentina.
3. José Fernández Palmieri from the Applied Multiphysics Research Group(GIMAP) of the National Technological University at Bahia Blanca, Argentina.
iacm expressions 53/24 14

for all inclusions under AMCA please contact
Pablo A. Kler
pabloakler@gmail.com
Figure 3:
Prof. Mario Storti, president of thescientific committee of MECOM 2023

Figure 4:
All conference participants at the CENUR-Litoral Norte,
Salto, (Udelar) main stairs

Figure 5:
Prof. Sergio Idelsohn, in the name of all
AMCA members recognize
Prof. Víctor Fachinotti for his services to
the Association during the last years
New Authorities
During the Congress, took place the regular 2023 assembly of AMCA members. In
addition, as every second year, AMCA members elected a new directive board thatwill be active during the 2024-2025 period. The new directive board is constituted
as follows: President: Pablo A. Kler, Secretary: Laura Battaglia, Treasurer:
Gerardo Franck, Comission members: Santiago Urquiza, Sebastián Giusti,
Sebastián Machado, Javier Signorelli, Martín Idiart, Juan Manuel Podestá,
Sonia Vrech, Juan Ramos Nervi, Oscar Moller y Miguel Cousirat. All AMCA
members warmly thanked Prof. Victor Fachinotti for all these years of service. lCall for Papers
The Argentine Association for Computational Mechanics (AMCA) announces the XL Argentine Congress
on Computational Mechanics (MECOM 2024), to be held in Rosario, Argentina, organized by Facultadde Ciencias Exactas, Ingeniería y Agrimensura (FCEIA), of the Universidad Nacional de Rosario (UNR).
The following speakers have already confirmed their
participation at the MECOM 2024:
Carlos Tomé (Los Alamos, USA), Reinald Löhner
(George Mason University, USA), Rodney Fox (Universityof Iowa, USA), Pablo Mininni (Universidad de Buenos
Aires, Argentina), Daniel Fuster (Universidad Sorbonne,
Francia), Stéphane Zaleski (d'Alembert, Francia),
Alberto Passalacqua (University Iowa, USA) and
Ivo Roghair (TU Eindhoven, Netherlands).
https://amcaonline.org.ar/mecom2024/. l

15 iacm expressions 53/24

The Association of Computational Mechanics Taiwan
APCOM 2019
he 7th Asian Pacific Congress on Computational Mechanics (APCOM 2019), organizedby The Association of Computational Mechanics Taiwan (ACMT), was held from December
17 to 20, 2019, at the Taipei International Convention Center (TICC) in Taipei City. ACMT
organized the conference grandly. This conference specially invited 24 internationallyrenowned scholars to deliver plenary and semi-plenary speeches, including former Presidentof the Austrian Academy of Sciences, Prof. Herbert Mang, National Academy of Sciences
member, Prof. David J. Srolovitz, former Presidents of IACM, Prof. Wink-Kang Liu and Prof.
Antonio Huerta and former President of the US Association for Computational Mechanics,
Prof. J-S Chen, among others. Additionally, 182 scholars from both domestic and international
institutions were invited to chair 147 minisymposia, with a total of 638 papers presented.

T

Legal Establishment of ACMTThe Association of Computational Mechanics Taiwan (ACMT) was founded in 2007 tostrengthen the development and collaboration between researchers in the field ofcomputational mechanics in Taiwan. Many members of ACMT are also regular minisymposium organizers and speakers for WCCM and APCOM events. To continue
deepening and promoting the academic research and application of computational
mechanics in Taiwan and internationally, we formally applied to the Ministry of the Interior
to register the society in 2022. The founding conference invited members to share theirlatest research findings and featured panel and group discussions to lay down the roadmap
for the future development of ACMT.

Figure 1:
Figure 2:
ACMT founding conference group photo Computational Mechanics Trend Forum

Figures 3 & 4:
The founders discussed the future of ACMTAnnual ACMT Conference 2023
The annual meeting and conference of the Association of Computational Mechanics
Taiwan (ACMT) 2023 & The 14th Workshop on Boundary Element
Methods in Taiwan was successfully held in Taiwan on October
28-29, 2023. The conference was organized by the National
Taiwan Ocean University and co-organized by the National
Science and Technology Council.
Figure 5:
Annual meeting &conference of the
Association ofComputational Mechanics
Taiwan (ACMT) 2023

Figure 6:
Prof. C-S David Chen,the president of ACMT
iacm expressions 53/24 16

At the opening ceremony, the conference chairman and current ACMT president, Prof. C-S David
Chen, on behalf of the organizing committee, welcomed all the guests who come to the conference onsite, including the president of National Taiwan Ocean University, Prof. Tai-Wen Hsu.
There were 2 plenary presentations at the conference. In the first plenary presentation session,
Prof. Hong-Ki Hong from National Taiwan University presented “Computing Saint-Venant
Flexure-Torsion and Warping in Three Dimensions.” (Figure 8) Prof. Jiun-Shyan Chen from

Figures 7:
Prof. Shu-Wei Chang, t
he secretary general of ACMT

Figure 8:
Prof. Hong-Ki Hong,
National Taiwan University

Figure 9:Prof. Jiun-Shyan Chen, Universityof Californian, San Diego, USAfor all inclusions under ACMT please contact
C-S David Chen
dchen@ntu.edu.tw

Figures 10:
Prof. Tsung-Hui Huan

Figures 11:
Prof. Yu-Hsi Huang

Figures 12:
Prof. Ting-Ying Chou

Figures 13:
Prof. Cheng-Hsien Lee

University of Californian, San Diego, USA, in the second plenary presentation session,presented “Thermodynamics-based Data-driven Computing for Inelastic Materials Modeling.”
There were also 4 semi-plenary presentations onsite. Prof. Tsung-Hui Huang from
National Tsing Hua University presented “Recent Advances in Meshfree Formulation for
Extreme Mechanics Problems in Submarine Applications” (Figure 10). Prof. Yu-Hsi Huangfrom Chung Yuan Christian University presented “The Application Research of Computational
Mechanics in Acoustic Components and micro-power generation components” (Figure 11).
Prof. Ting-Ying Chou from National Cheng Kung University presented “Revealing the Enigmasof Brain Tissue Displacement and Cerebral Pressure Distribution through Poroelastodynamics”(Figure 12). Prof. Cheng-Hsien Lee from National Sun Yat-sen University presented“Development of Multi-phase Model for Sediment Transport” (Figure 13).
ACMT 2023 13 minisymposia, with a total of 117 submissions received. There were 27
entries in the student poster competition and 126 abstracts. We sincerely appreciate
everyone's participation in the ACMT 2023.

Figures 14:
The student poster
competition

Special Lecture Event
In early 2023, ACMT held a special lecture event with 60 participants. Prof. J.S. Chen was invited to deliver a keynote
speech titled "When Machine Learning Meets Computational Mechanics - A New Paradigm in Scientific Computing."(Figure 15) Additionally, several Taiwanese scholars were invited to give brief presentations: Research Fellow Chun-Wei
Pao presented "Machine Learning and Atomistic Simulations for Nanomaterial Mechanics." (Figure 16) Prof. Chien-Kai
Wang delivered a presentation on "Continuum Mechanics of Extreme Response Analysis and Measurement Noise
Reduction for Stokes Flow Under Uncertainty." (Figure 17) RD Manager Li-Hsuan Shen spoke on "Application of
Numerical Simulation to Advanced IC Packaging." (Figure 18) Prof. Tsung-Hui Huang presented "Stabilized Galerkin
Meshfree and Machine Learning Formulation for Advection Dominated Flows." (Figure 19)

Figures 15:
Prof. J.S. Chen,
Uni. of Californian

Figures 16:
Research Fellow
Chun-Wei Pao

Figures 17:
Prof. Chien-Kai Wang

Figures 18:
Manager
Li-Hsuan Shen

Figures 19:
Prof. Tsung-Hui Huang

Short Courses
To deepen the roots of computational mechanics, ACMT organized short courses on June 17, 2023, and January 15, 2024,
respectively. The total number of registrations for these courses accumulated to nearly 90 participants. Thanks to Prof.
Chi-Hua Yu from National Cheng Kung University and Prof. Li-Wei Liu from National Taiwan University for hosting these
two events.

Figures 20 & 21:
Short Course hosted by Prof. Chi-Hua Yu (June 17, 2023)

Figures 22 & 23:
Short Course hosted by Prof. Li-Wei Liu (January 15, 2024)

More
For more information and the latest news about ACMT, you are welcome to visit our website https://www.acmt.info/.

l

17 iacm expressions 53/24

UKACM 2024 Conference
he next UKACM conference will be hosted by the Department of Engineering of
Durham University, from 10th-12th April202, chaired by Professor Will Coombs..

T

The following plenary speakers have agreed to speak at the conference:••••

Professor Xiaoying Zhuang, Leibniz University Hannover
Professor David Emerson, Science and Technology Facilities Council (STFC)
Professor Jon Trevelyan, Durham University
Dr Tim Hageman, UKACM 2022 Roger Owen PhD thesis prize winnerand best ECCOMAS PhD thesis of 2022, Imperial College London/Universityof Oxford.

The conference will be complemented by a half day School on the afternoon of
Wednesday 10th April 2024 focused on computational methods for solid mechanics,
speakers and topics as follows:•••

Professor Jon Treveyan, Introduction to the boundary element method
Professor Charles Augarde, Introduction to the material point method
Dr Stefano Giani, Introduction to discontinuous Galerkin finite element methods.

Further details can be found in https://sites.google.com/view/ukacm2024conferenceFirst UKACM Autumn Schoolrom 6th-8th September 2023 the first UKACM Autumn School was organisedby the Glasgow Computational Engineering Centre. The school focused ontheoretical aspects and hands-on activities related to mixed finite element
formulations in solid mechanics.

F

Speakers and lectures delivered were:•
Dr Ignatios Athanasiadis, Taylor-Hood element with block
solvers•
Dr Andrei Shvarts, Mixed formulation for thermo-elasticity•
Professor Lukasz Kaczmarczyk, Multifield formulation for plasticity. Mixed formulation for large strain incompressible hyperelasticity•
Dr Chun Hean Lee, Explicit fast-transient solid dynamics.
Stabilised FEM for 1D linear elasto-dynamics•
Dr Callum J. Runcie, Hands-on training sessions with topics
related to the first-order hyperbolic system for large strain solid
dynamics.
The recordings can be found in https://www.youtube.com/playlist?list=
PLbqyPFhdeLn-fq4OLtlMkrcwh9S-yXJpt
iacm expressions 53/24 18

for all inclusions under UKACM please contact
Rubén Sevillar.sevilla@swansea.ac.uk

Open Call to organise
the 2024 UKACM-SEMNI
Autumn School

nterested parties are invited to submit an expression of interest (maximum 2 pages)
to both the UKACM and SEMNI presidents, outlining their background and expertisein Computational Mechanics, their vision and objectives for the proposed Autumn
School, the proposed theme and potential speakers and the hands-on activities.

I

The Autumn School is expected to be an online event with no registration fee,to be held during the last two weeks of September 2024 and have a durationof 2 to 4 days. lMembers of the
UKACM executive committee
ollowing an election process, two new academics have been selected UKACM
executive committee members taking the roles of secretary and ECCOMAS YIC
Representative.

F

The current executive committee is formed by:
•
•
•
•
•
•

Jose Luis Curiel-Sosa, Prizes Coordinator, University of Sheffield
Omar Laghrouche, Treasurer, Heriot-Watt University
Irene Moulitsas, Webmaster, Cranfield University
Rubén Sevilla, President, Swansea University
Wei Tan, ECCOMAS YIC Representative, Queen Mary University of London
Zahur Ullah, Secretary, Queen’s University Belfast

The current co-opted members are René de Borst, Jelena Ninic, Chris Pearce,
Mohammad Rezania and Will Coombs, due to their involvement in IACM, ECCOMAS
and in organising UKACM conferences. l2022 Roger Owen PhD Thesis Awardhe call for the Roger Owen UKACM prize for the best PhD thesis in 2023 is now
open. Eligible are applicants whose thesis was awarded in 2023.
The prize consists of:

T

•
•

•

A monetary award of £1,000, sponsored by the European Journal ofComputational Mechanics.
An invitation to the UKACM’s annual conference as a plenary speaker and,provided the awardee attends the conference and delivers the talk,the sum of £500 to cover expenses.
An automatic nomination to the ECCOMAS PhD Awards. l
19 iacm expressions 53/24

USACM Awards Honorees
he following awards were presented to USACM honorees during the17th U.S. National Congress on Computational Mechanics in Albuquerque,
New Mexico, July 23-27, 2023.

T

John von Neumann Medal
Tayfun Tezduyar
Rice Uni. & Waseda Uni.

Belytschko MedalDavid Benson
Ansys, Inc.

Thomas J.R. Hughes Medal
Kenneth Jansen
Uni. of Colorado at Boulder

J. Tinsley Oden Medal
Karen Willcox
Oden Institute
The Uni. of Texas at Austin

Gallagher Young Investigator Medal
Jinhui Yan
Uni. of Illinois at Urbana-Champaign

USACM Fellows

iacm expressions 53/24 20

Alireza Doostan
Uni. of Colorado at Boulder

Hector Gomez
Purdue University

Habib Najm
Sandia National Lab.

Siddiq M. Qidwai
National Science Foundation

Rekha Rao
Sandia National Lab.

Karen Willcox
Oden InstituteUni. of Texas at Austin

for all inclusions under USACM please contact
admin@usacm.org

Figure 2:
Prof. Thomas J.R. Hughesfrom the Oden Instituteof The University of Texas
AustinAdvances in Computational Mechanics(ACM 2023)
dvances in Computational Mechanics, a Conference Celebrating the 80th
Birthday of Thomas J.R. Hughes with Special Track in Computational
Fluid-Structure Interaction: Frontiers in Methods and Applications (CFSI 2023)
was held October 22-25, 2023 in Austin, Texas, USA.

A

Over 250 participants gathered to celebrate the 80th birthday and long successfulcareer of Prof. Thomas J.R. Hughes from the Oden Institute of The Universityof Texas Austin. The conference featured technical talks in 26 areas related
to computational fluid-structure interaction and advancements in the fieldcomputational mechanics over nine parallel sessions.
It also featured plenary talks from Yuri Bazilevs, Hector Gomez, Ming-Chen Hsu,
Wing Kam Liu, Herbert Mang, Alison Marsden, Eugeñio Onate, Marie Oshima,
Kenji Takizawa, Robert Taylor, Tayfun Tezduyar, Karen Willcox, and Peter Wriggers.
Photos from the conference may be found at https://flic.kr/s/aHBqjB2udz

l

USACM Upcoming Eventsm

1Quarter Century of Peridynamics, April 23-25, 2024, Tucson, Arizonam

Second Thematic Conference on Uncertainty Quantification for
Machine Learning Integrated Physics,
August 12-14, 2024, Crystal City, Arlington, Virginiam

IGA 2024, October 27-30, 2024, St. Augustine, Florida
Further information may be found at usacm.org. l

21 iacm expressions 53/24

Report fromthe Japan Association for Computational Mechanics
he Japan Association for Computational Mechanics (JACM) is a union ofresearchers and engineers working in the field of computational mechanics
mainly in Japan. The JACM is a loosely coupled umbrella organization covering
29 computational mechanics related societies in Japan through communication
with e-mail and web page (https://ja-cm.org/index-e.html). The number of individual
members is about 330. JACM members actively participate in the IACM activities.

T

On September 9th, 2023,
the 2023 JACM annual
meeting and award
ceremony were held inGreen Computing
Systems Research andDevelopment Center ofWaseda University inTokyo. The meeting was
also broadcasted by Zoom
to remote participants(Figure 1).
In this year, JACM
inducted three newhonorary members.
Before the award ceremony, new honorary members were introduced. They havedistinguished records of researches and services to computational mechanics
related professional societies. The new honorary members are Professor Takayuki
Kitamura (Professor Emeritus, Kyoto University), Professor Eiji Nakamachi(Professor Emeritus, Doshisha University) and Professor Ryutaro Himeno(Juntendo University). Each of new honorary members gave a short speech,
after their introductions.

Figure 1:
Professor Hiroshi Okada, President of JACM, reporting about the recent activities of JACM

(a)

Following the introduction of the new honorary members, the award ceremony took
place. There are three categories in the JACM Awards: the JACM Computational
Mechanics Award which is the highest award, the JACM Fellows Award and the
JACM Young Investigator Award. Professor Toru Ikeda (Kagoshima University),
Professor Mikio Sakai (The University of Tokyo) and Makoto Tsubokura (Kobe
University) were awarded 2023 the JACM Computational Mechanics Award(Figure 2). The recipients of the JACM Fellows Award were Professor Satoshi Ii(Tokyo Metropolitan
University), Dr. Hiroshi
Watanabe (Hexagon) andProfessor Yasushi Nakabayshi(Toyo University) (Figure 3).
The winners of JACM Young
Investigator Award were
Professor Kentaro Yaji
(Osaka University), Professor
Yasunori Yusa (The University
of Electro-Communications)(b)(c)
Figure 2:
and Professor Takuya Terahara
Recipients of the 2023 JACM Computational Mechanics Award,(Waseda University)(a) Professor Toru Ikeda (Kagoshima University)(Figure 4). l(b) Professor Mikio Sakai (The University of Tokyo) and(c) Professor Makoto Tsubokura (Kobe University)

iacm expressions 53/24 22

For all inclusions under JACM
please contact:
Hiroshi Okada jacm@ja-cm.org(a)(b)
Figure 3:
Recipients of the 2023 JACM Fellows Award,(a) Professor Satoshi Ii (Tokyo Metropolitan University),(b) Dr. Hiroshi Watanabe (Hexagon) and(c) Professor Yasushi Nakabayshi (Toyo University)

(c)

(a)
(b)
(c)
Figure 4:
Recipients of JACM Young Investigators Award,(a) Professor Kentaro Yaji (Osaka University),(b) Professor Yasunori Yusa (The University of Electro-Communications) and(c) Professor Takuya Terahara (Waseda University)

The second part of the annual meeting was the fourth JACM awardee seminar.
The purpose of this seminar series is to have researchers who received the JACM
awards recently give lectures on their latest research activities. Two lectures were
given in the seminar. The first one entitled “Current Topics on Computational
Mechanics in Biomedical Engineering” was presented by Professor Tomohiro Otani(Osaka University), who is the JACM Young Investigator Award winner of year 2022.
The second one was “Digitalization of Computational Fluid Mechanics: How Are
Complexities of Fluid Flow Grown and Observed?” given by Professor Nobuyuki
Oshima (Hokkaido University), received the JACM Computational Mechanics
Award of year 2022. At the end of the 2023 JACM meeting, we took a group
photo (Figure 3). lFigure 5:Group Photo (All the participants)
23 iacm expressions 53/24

he 6th German-Japanese Workshop on Computational Mechanics was held
on December 4-5, 2023, in Aachen, Germany. This workshop was supportedby the German Association for Computational Mechanics (GACM) and the Japan
Society for Computational Engineering and Science (JSCES) and aimed to promote
cooperation and exchange between the two countries in the field of computational
mechanics. The workshop covered various topics such as fracture mechanics,
material modeling, topology optimization, finite element methods, isogeometricanalysis, and high-performance computing.
The workshop was attended by 26 participants from Germany and Japan, who
presented their latest research results and discussed the current challenges
and future directions of computational mechanics. The workshop also featured
two keynote lectures by Prof. Wolfgang Wall from TU Munich (Figure 1) andProf. Toshio Nagashima from Sophia University, who shared their insights andexperiences on the applications of computational mechanics to biomedical
engineering and composite materials, respectively. On the second day, an
optional tour to the Jülich Supercomputing Centre (JSC) was organized, where
the participants had the opportunity to visit the HPC system JUWELS and thequantum computer JUPSI, and learn about the Center of Excellence RAISE,
which focuses on artificial intelligence and machine learning for engineering
applications (Figure 2).

Keynote lecture by Prof. Wolfgang Wall from TU Munich The

In front of the quantum annealing machine of the
Jülich Supercomputing Centre

workshop was a great success, as it provided a platform for stimulating discussions,knowledge exchange, and networking among the participants. We express our
deep gratitude to GACM, the speakers, and the participants for their contributions
and support.
lhe summer camp for students is a successful series hosted by JSCES
from 2013. The event was held online from 2019 to 2022 due to COVID-19,
but in 2023 we were able to hold it onsite in Tsukuba, Ibaraki, Japan (Figure 3).
The summer camp for students 2023 featured a poster session (Figure 4) led
by young researchers and students in a traditional Japanese-style room, and theBest Poster Award was presented to two students.

T

iacm expressions 53/24 24

Participants of the JSCES summer camp
for students 2023

Discussions at the poster session

Four doctoral students presented their ongoing research and their motivation forentering the doctor course, and 4 keynote speakers gave talks on their researchexperiences and their career in universities, national laboratories, and industry. l

he The Japan Society ofComputational Engineering andScience (JSCES) and the Japan
Association for Computational
Mechanics (JACM) will jointly host the
4th International Conference on
Computational Engineering and Science
for Safety and Environmental Problems(COMPSAFE2025) which will be held
during July 1st-4th, 2025, in Kobe, Japan.
This conference series is an APACM
Thematic Conference and an IACM
Special Interest Conference, aimed tobring together researchers and scientists
from all over the world, who fight daily
in the field of disaster prevention andmitigation, structural and material failure,
safety and security maintenance, and soon.
Other main topics of the conference include, but are not limited to: computational
mechanics, computational engineering and science technologies, and theirapplications related to (1) safety- / risk-related, disaster-preventing topics including
various types of natural hazards such as earthquake, tsunami, typhoon / hurricane /cyclone, flood, explosion of volcano, landslide, (2) any kinds of accidents andfailures of engineering artifacts such as fractures, crashes, explosion, and(3) environmental and social problems such as air / water pollution, material
failures, radioactive contamination, global environment problems, evacuation andso on.
We hope this conference will play a role of creating networks between academia
and industries and push forward the technologies in those fields. l

25 iacm expressions 53/24

10th GACM Colloquium on
Computational Mechanics for Young Scientists
from Academia and Industry

Follow GACM

uring September 10–13, 2023, the 10th GACM Colloquium on Computational
Mechanics for Young Scientists from Academia and Industry, a regularconference of the German Association for Computational Mechanics (GACM), took
place in Vienna, Austria. It was hosted at TU Wien and organized by three research
associates from the faculties of Mechanical and Industrial Engineering and Civil
and Environmental Engineering, namely Dr. Fabian Key, Dr. Marco De Paoli, and
Dr. Antonia Wagner. As a highlight, the conference received the ÖkoEvent certificate
from the City of Vienna, which recognizes sustainable events meeting several relevant
criteria.

D

The event was well attended, with 170 participants from 15 countries around theworld. In 17 mini-symposia with a total of 139 contributed talks, and a poster session
with 12 contributions, researchers presented their latest work and advances incomputational methods in engineering. In addition, the scientific program wasenriched by five plenary lectures by renowned invited speakers presenting theircutting-edge research in computational mechanics, and the lecture of the GACM BestPhD Award 2022 winner, Dr. Ivo Steinbrecher.
Participants also enjoyed a variety of social activities, such as looking behind thescenes of the Natural History Museum, or exploring the main
attractions of Vienna’s central district during a riddle rally city tour.
All in all, the diverse program and the lively participation of themembers of
the computational mechanics community
in attendance
made theevent a great
success. l
Figure 1:
Natural History Museum Reception

Figure 2:
GACM President Marek Behr and the winners of the GACM Best
Poster Award 2023, Annika Schmidt, Sonja Hellebrand, & Erik Faust

2nd German-Italian Workshop on Common ResearchInterests in Computational Mechanics
n September 14–15, 2023, the 2nd German-Italian Workshop on "Common
Research Interests in Computational Mechanics”, was organized by the Chair
for Computational Analysis of Technical Systems at RWTH Aachen University. 35
experts from both countries came together for two days of knowledge exchange
and collaboration.

O

Day one began with a guided tour of the awe-inspiring World Heritage Aachen
Cathedral, setting the stage for the meeting. In the scientific program, we had a totalof 19 talks in four sessions, addressing recent topics in computational mechanics.
On both days, the scientific program headlined by keynote lectures. On the first day,Ferdinando Auricchio from Università di Pavia presented an overview of recent
numerical methods applied to additive manufacturing. On the second day, Stefanie
Elgeti from TU Wien and RWTH Aachen University, gave an inspiring presentation
with the title “Numerical Design of Engineering Components and their Production
iacm expressions 53/24 26

for all inclusions under gacm please contact:
Norbert Hosters
gacm@gacm.deFigure 3:
35 experts from Germany & Italy
Processes”. The evening dinner after the first day and coffee breaks on the
Skylounge terrace on top of the RWTH main building fostered meaningful
networking and connections. l

6th German-Japanese Workshop on Computational
Mechanics

Figure 4:
World Heritage
Aachen Cathedraluring December 4–5, 2023, the 6th German-Japanese Workshop on
Computational Mechanics was organized also by the Chair for Computational
Analysis of Technical Systems at RWTH Aachen University. It brought together 30
experts for two days of intense discussion.

D

The scientific program comprised a total of 18 talks in four sessions. On both days,
the program featured keynote lectures. On the first day, Toshio Nagashima from
Sophia University presented remarkable research on “Damage Propagation Analysesof CFRP Laminate with Impact Damage under Compressive Load by Quasi-3D
XFEM”. The second day was started by a motivating presentation “A Road Trip
Report from Basic Science to Clinical Practice” by Wolfgang A. Wall from Institute for
Computational Mechanics (Wall Lab) at Technical University of Munich. The dinner
after the first day in Aachen city center gave a welcome occasion for networking andreviving long-lasting bonds between the two communities.
The workshop closed with a tour of the Jülich Supercomputer Center at
Forschungszentrum Jülich. There, Dr. Andreas Lintermann gave an insight into
the activities of European Center of Excellence RAISE. Afterwards, all participants
had the chance to visit the high-performance computer systems JUWELS and thequantum annealing computer JUPSI at the Jülich UNified Infrastructure for Quantum
Computing (JUNIQ). l

Figure 5:
35 experts from Germany & Japan

Figure 6:
Excursion to the Quantum Annealear JUPSI,FZ Jülich
27 iacm expressions 53/24

for all inclusions under CEACM please contact
Adnan Ibrahimbegovic
adnan.ibrahimbegovic@utc.fr

he Central European Association for Computational Mechanics or CEACM counts
the following Central European countries (in alphabetical order): Austria, Bosnia andHerzegovina, Croatia, Czech Republic, Hungary, Slovakia and Slovenia. The CEACM wascreated in 1990s by prominent scientists, Herbert Mang, former President of ECCOMAS
and Ivo Babuska, a Gauss-Newton medalist of IACM. The Executive Committee of
CEACM consists of the current President, Adnan Ibrahimbegovic, the Vice-President,
Janos Logo, and the Past-President, Bernhard Pichler. The CEACM Board also includes:
Pavel Polach, Justin, Murin, Joze Korelc,and Zdenko Tonkovic. It is CEACM Board that
decides the attribution of CEACM Awards and the list of CEACM sponsored meetings.

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URL: https://ceacm.net

Figure 1:
Zdenek BITTNAR
CEACM Prof. Mang Award

Figure 2:
Ivica KOZAR
CEACM Computational
Mechanics Award

Figure 3:
Samir SULJEVIC
CEACM Best Thesis Award

In 2024, The CEACM Board has attributed three CEACM Awards to honor active
researchers from CEACM partner countries. In particular, the senior scientists are honoredby CEACM Prof. Mang Award, the highest honor by CEACM named after its founding
father. The CEACM Prof. Mang Award is bestowed each year to honor an outstanding
individual who has demonstrated sustained efforts in advancing either theoretical orpractical aspects of computational mechanics and who provided strong leadership either
in an academic environment or in different industrial applications. In 2024, the CEACM
Prof. Mang award is attributed to Emeritus Professor of CTU Prague, Zdenek BITTNAR(Figure 1). The established researchers are honored by CEACM Computational
Mechanics Award. This award recognizes a researcher who made significant contribution
either in the traditional disciplines of Computational Mechanics or in related domains.
This year, the CEACM Computational Mechanics Award is attributed to Professor Ivica
KOZAR (Figure 2), University of Rijeka, Croatia. The CEACM Young Researcher Awardwas initiated by CEACM to honor an exceptional contribution of a young scientist, who hascompleted his/her doctoral studies in the broad domain of Computational Mechanics within
the year of the award call. The winner this year is Samir SULJEVIC (Figure 3) ofUniversity of Sarajevo, Bosnia-Herzegovina. This thesis is also nominated by CEACM for
participating in ECCOMAS competition for Best Thesis Award. All these CEACM
Awards are attributed in the meeting of the CEACM Executive Board that was reunited on
March 8, 2024 in online meeting (Figure 4).

The current scientific activities concern a CEACM sponsored scientific conference S4ML:
Synergy between Multiphysics/Multiscale Modeling and Machine Learning, to be held in
Prague, June 19-21, 2024. The main idea of this conference is to examine recent
advances from mechanics and applied mathematics in a currently very active researchdomain of multi-scale modeling and computations in application to solids, fluids, structures,
systems and different multi-physics problems. One of the motivations for this workshop
is to investigate the complementarity of classical multi-physics/multi-scale approaches
and model building approaches based on the use of machine learning algorithms.
The knowledge accumulated through the long-term efforts of computational mechanics
experts provides an a priori selection of efficient reduced models built with appropriate
assumptions and kinematic constraints. Classical structural models are also proving tobe very useful for building relevant multi-scale and multi-physics models. In parallel,
there are many advances in the use of Artificial Intelligence and statistical data analysis
algorithms, or machine learning approach to building models for mechanics. How cansuch approaches be developed in synergy? Can they benefit from each other’sadvances? Can model building skills be reduced to the application of artificial intelligencealgorithms? It is an explicit goal of this thematic conference, in the true spirit of
CEACM, to bring these different communities together, and thus provide a soundbasis for a fruitful exchange of ideas among them. The conference seeks also toprovide a platform for learning from some of the worlds’ leading specialists comingfrom aerospace, civil and mechanical engineering, material science, and in thedesign and analysis of numerical algorithms from applied mathematics. For moredetail, one can visit the conference website: https://ceacm.net/s4ml-2024 l
Figure 4:
CEACM Board Online Meeting, March 8, 2024

iacm expressions 53/24 28

for all inclusions under GIMC please contact
Sonia Marfia
sonia.marfia@uniroma3.it

GIMC Best PhD Thesis Award

Gruppo Italiano di
Meccanica Computazionale

he The GIMC Best PhD Thesis Awards committee, composed by Stefania
Cherubini (Politecnico di Bari), Ugo Galvanetto (Università di Padova), Antonio
Madeo (Università della Calabria), Vincenzo Mallardo (Università di Ferrara) andCristian Marchioli (Università di Udine), selected the following theses, defended in
2023, as the best Theses in Computational Solid and Fluid Mechanics:

T-

Dr. Alessandro Marengo, Politecnico di Milano“The phase-field modeling of fracture evolution in ductile materials withapplication to paperboard mechanics”.
This thesis was also selected as candidate for the ECCOMAS PhD Award-

Dr. Alessandro Della Pia, Università di Napoli Federico II“Numerical and experimental investigation of unsteady plane liquid jets”

GIMC SIMAI YOUNG 2024
Naples, July 10-12, 2024
GIMC (Gruppo Italiano di Meccanica Computazionale) and SIMAI (Società
Italiana di Matematica Applicata e Industriale) are glad to announce that theirsecond joint workshop for young scientists (≤ 35-year-old) will take place in Naples
on July 10-12, 2024. This event aims to provide young researchers with a platform
to exchange their most recent results, stay current on new trends, and foster
meaningful interactions. The program includes some plenary lectures by leading
scientists, a dedicated session for recipients of the GIMC-SIMAI young awards,
parallel thematic sessions organized by participants, as well as contributed
sessions.
All details can be found on the web site:
https://sites.google.com/view/gsyw24/home-page

GIMC GACM 2023 Workshop
he German Association of Computational Mechanics (GACM) and GIMC haveorganized the Second Joint GACM-GIMC workshop on "Common ResearchInterests in Computational Mechanics". The workshop took place from September
14 to 15, 2023, at RWTH Aachen University, and was attended by invited membersof the two associations to strengthen the collaboration between Italy and Germanyin the broad field of Computational Mechanics.

T

Scientists from both countries who have initiated joint common research activities
in the past and in recent times were asked to present their work resulting from thecollaboration between the two countries.
The complete book of abstract can be downloaded from:https://www.gacm.de/fileadmin/user_upload/gacmgimc2023/GACM-GIMCWorkshop-2023_BookOfAbstracts.pdf
The Web page with more information on the workshop is:https://www.gacm.de/gacmgicm2023/organisation l
29 iacm expressions 53/24

5th Polish Congress of Mechanics &25th International Conference on Computer Methods in Mechanics
rom September 4 to 7, 2023, the 5th Polish Congress of Mechanics, combined withthe 25th Conference of Computer Methods in Mechanics, took place at the SilesianUniversity of Technology. The main organizer of the Congress was the Polish
Association of Theoretical and Applied Mechanics, in particular the Gliwice branch, andthe co-organizers were the Polish Association for Computational Mechanics and theSilesian University of Technology. The honorary patronage of this event was provided
by the President of Poland. The following institutions provided substantive support:
Institute of Fundamental Technological Research, Committees of the Polish Academyof Sciences and the Polish Scientific and Technical Exploitation Society. The city ofGliwice received the status of Event Partner.

F

During the opening ceremony of the Congress, the President of the Congress, prof.
Michał Kleiber, Rector of the Silesian University of Technology prof. Arkadiusz Mężyk,President of the City of Gliwice Adama Neumann, Chairman of the Silesian
Voivodeship Assembly prof. Mark Gzik, Chairman of the Polish Association ofTheoretical and Applied Mechanics: prof. Tomasz Krzyżyński and the Chairman of thePolish Association for Computational Mechanics, prof. Wojciech Sumelka.

The Congress hosted 304 participants, and 225 works were presented. Invitations togive plenary lectures were accepted by: Prof. Marek Behr (Chair for Computational
Analysis of Technical Systems (CATS), Center for Simulation and Data Science (JARACSD), RWTH, Aachen University), Prof. Piotr Breitkop (Department Laboratoire
Roberval, FR3272 SHIC CNRS-UTC Alliance Sorbonne Université, Université deTechnologie de Compiègne), Prof. Witold Elsner (Head of Department of Thermal
Machinery, Faculty of Mechanical and Computer Engineering, Czestochowa Universityof Technology), Prof. Jerzy M. Floryan (Department of Mechanical and Materials
Engineering, The University of Western Ontario), Prof. Andrzej Katunin (SilesianUniversity of Technology, Faculty of Mechanical Engineering, Department ofFundamentals of Machinery Design), Prof. Kostyantyn Korytchenko (Head of
Department of Applied Electrical Engineering, National Technical University "Kharkiv
Polytechnic Institute"), Prof. Božidar Šarler (Chair of Department of Fluid Dynamics
and Thermodynamics, Faculty of Mechanical Engineering, University of Ljubljana.),Prof. Wojciech Sumelka (Head of Division of Computer Aided Design, Poznan
University of Technology), prof. Utz von Wagner (Chair of Mechatronics and Machine
Dynamics, Technische Universität Berlin), Prof. Sebastian Wolf (Director of Movement
Analysis Lab, Clinic for Orthopedics, Heidelberg University Hospital, Center for
Orthopedics, Trauma Surgery and Spinal Cord Injury).
The Congress consisted of 7 thematic sessions, i.e. Solid Mechanics, Biomechanics,
Fluid Mechanics, Solid Fluid Interaction, Computational Mechanics, Advanced
Materials, Transdisciplinary Engineering and 12 mini-symposiums:•
MS04 – Damage identification in advanced materials.
Organizers: S. Samborski, P. S. Valvo, D. Fanteria•
MS05 – Modern Mechanics of Concrete – Applications and Simulations.
Organizers: J. Bobiński, S. Pietruszczak, M. A. Polak, A. Winnicki, A. Wosatko•
MS06 – Stochastic Mechanics.
Organizers: A. Tylikowski, R. Iwankiewicz, Z. J. Zembaty, A. Ozga•
MS07 – Mechanism, machines and robots - theory and applications.
Organizers: A. Burghardt, A. Harlecki, M. Wojtyra, J. Bałchanowski•
MS08 – Advanced discretization methods.
Organizers: W. Cecot, W. Rachowicz, R. Sauer, G. Zboiński
•MS09 – Reliability of structures. Organizers: M. Dutkiewicz, J. Szafran
iacm expressions 53/24 30

for all inclusions under PACM please contact
Wojciech Sumelka
wojciech.sumelka@put.poznan.pl
•
•
•
•
•

MS10 – Vibration - Usage and Impact on the Environment.
Organizers: G. Cieplok, M. S. Kozień
MS11 – Multidisciplinary and Multi-science Modelling.
Organizers: Y. Kwon, A. Poteralski, G. Dziatkiewicz
MS12 – Dynamics of Structures. Organizers: P. Przybyłowicz, J. Warmiński
MS13 – Computational Oncology and Personalised Medicine.
Organizers: R. Białecki, E. Majchrzak MS14 – High Speed Phenomena.
Organizers: J. Małachowski, K. Jamroziak, E. Krzystała, S. Sławski
MS21 – Non-Conventional & Multi-Scale Methods for Solid & Fluid Mechanics.
Organizers: W. Sumelka, T. Błaszczyk, Y. Sun, J. Leszczyński, G. Failla,
Ł. Madej, S. Pfaller, P. Paćko, T. Wejrzanowski, K. Perzyński

Both plenary and thematic sessions were held in rooms in the Educational andCongress Center of the Silesian University of Technology building. The deliberations
were held in 5 parallel sessions. The thematic scope of the Congress was extremelyrich and diverse. It can be said that it basically completely covered the scientific andresearch issues of mechanics and computer methods in mechanics, with particularemphasis on the work currently being carried out, emphasizing new trends in science.
During the Congress, there were ceremonies honoring people for outstanding achievements in the field of science. During the opening of the Congress, the prof. O.C.
Zienkiewicz Medal of the Polish Association for Computational Mechanics was awarded
to prof. Marek Behr and prof. Witold Elsner. However, prof. Tomasz Krzyżyński accompanied by prof. Andrzej Tylikowski awarded the Prof. Wacław Olszak Medal to Dr. Eng.
Katarzyna Szepietowska.
Special events accompanied the Congress. On the first day, the participants had theopportunity to listen to a concert of the Song and Dance Ensemble "Śląsk: im.
Stanisław Hadyna”. The twenty-two-person band performed in two versions: folk songs
and stage songs. On the second day, congress participants were invited to take part inan extraordinary trip to the Guido Mine. It is a unique tourist attraction of Upper Silesia.
On the third day, the "Gala Diner" took place on the Gliwice Aero Club's premises in thehistoric gliders exhibition hall. The gala dinner was celebrated with a concert of the
Academic Music Ensemble of the Silesian University of Technology.

State institutions and private companies also got involved in the event through financial
support. The event received funding under the "Excellent Science" program. The
Diamond Sponsor status was awarded to AIUT and DANTEC DYNAMICS, the Gold
Sponsor status was awarded to X-SIGHT, Sumitomo and
EC TEST SYSTEMS, and the Silver Sponsor status
was awarded to EMT SYSTEMS - Engineering Training
Center. The support provided contributed to maintaining
the highest organizational standards, which resulted in
the Congress being a substantive and organizational
success.
Organizing the Congress was challenging, demanding,and engaging for many months. However, the successachieved would not be possible without the support ofmany people. Therefore, we would like to thank everyone
for their involvement, together with the Organizing
Committee, in organizing this event, which is so important
for the mechanics community in Poland. lby:
Sławomir Duda & Wojciech Sumelka
31 iacm expressions 53/24

he ABMEC (Brazilian Association of Computational Methods in Engineering) aims topromote the appreciation and dissemination of knowledge achieved by researchers in
the area of Computational Methods applied to Engineering. The events sponsored by
ABMEC over the years have significantly represented these objectives, reaching thetarget audience in a differentiated manner each year.

T

2 nd German Brazilian Workshop on Computational Mechanics
The 2nd German Brazilian Workshop on Computational
Mechanics took place at TUHH Hamburg University ofTechnology from Nobember 9th to 11th 2023.
The workshop brought together scientists in order toexchange experiences and knowledge as well as to explore
possible cooperations and to build up a large network ofBrazilian and German researchers. The event strengthenedlthe cooperation with many vivid discussions.

Figure 1:
2nd German Brazilian Workshop
Delegate Group Photo
CILAMCE 2023
The hosting of CILAMCE 2023 in Porto, Portugal, organized by FEUP and ISEP,
promoted by the Brazilian Association of Computational Mechanics (ABMEC), was amilestone in the dissemination of research, exchange of ideas, networking, and humanresource development in research.

Figure 2:
Opening ceremony at CILAMCE 2023

The event brought together researchers, students,
professors, and professionals from various areas ofComputational Mechanics, offering a unique opportunity
for knowledge sharing and experiences. A total of 275
people attended the event, including 136 delegates,
11 graduate students, and 28 undergraduate students.
260 papers were presented on relevant topics for the field,
such as numerical modeling, simulation and analysis of
structures, software development, among others.
The networking promoted by CILAMCE 2023 was also ofgreat importance for human resource development inresearch. Participants had the opportunity to meet otherpeople in the field, establish professional and academic
contacts, and even seek internship or job opportunities.

In this way, ABMEC's promotion of CILAMCE in 2023 inPorto significantly contributed to the dissemination ofresearch in the field of Computational Mechanics, theexchange of ideas and networking among researchers and institutions, and thedevelopment of human resources in research.
ABMEC reaffirms its commitment to the promotion and development of Computational
Mechanics in Brazil and worldwide and looks forward to continuing to hold events likelthis in the future.
iacm expressions 53/24 32

for all inclusions under ABMEC please contact
Suzana Moreira Avila
suzana.avila@gmail.com

ABMEC Awards
At the CILAMCE conference banquet, the ABMEC awards
were presented: Dr. Diego Hayashi Alonso won the ABMEC
Award for Best Doctoral Thesis of the Year and ABMEC Youngscientist Award was given to Dr. Americo Barbosa da CunhalJunior.
Figure 3:
ABMEC Awards Presentation

Activities in 2024
From March 25th to 27th, 2024, the 1st Edition of the Workshop on Computational
Mechanics in Petroleum and Energy (MeComPE 2024) took place at the Institute of
Research in Petroleum and Energy (i-LITPEG), on the Recife Campus of UFPE.
The workshop is organized by the High-Performance Processing Group in Computational
Mechanics (PADMEC), under the auspices of the Brazilian Association of Computational
Methods in Engineering (ABMEC). It aims to strengthen the synergy between academia
and industry, thereby improving the dissemination and understanding of actions developedby the university and the private sector.
The main objective of this event is to create a forum for
debate and dissemination of knowledge and innovation,
where professors, researchers, professionals, and students
can exchange ideas and information about computational
methods and systems, as well as technological advances
employed in solving theoretical and practical problems inengineering and applied sciences in the field of petroleumland energy.

ABMEC is pleased to announce that CILAMCE will be held in the city of Maceió/AL, organized by ourcolleagues from the Federal University of Alagoas (UFAL). ABMEC will be promoting the event in a joint
organization with the Laboratory of Scientific Computing and Visualization (LCCV) and the Postgraduate
Program in Civil Engineering (PPGEC), institutions that are part of the Technology Center (CTEC), of theFederal University of Alagoas (UFAL) and the logistical support from Maceió Convention & Visitors Bureau,
foundation who works for the development of the tourist trade in Alagoas.
This is a great opportunity for our researchers and associates to participate
in an event of international relevance, with the presence of important namesin the field, and to present their work to a qualified audience.
Additional information about the conference can be found atwww.cilamce.com.br l
33 iacm expressions 53/24

The Computational Structural Mechanics Association
he Computational Structural Mechanics Association (CSMA) federates the
French structural engineering community and, since 1993, has organized thenational structural engineering symposium on the Giens peninsula in the Var regionof France. The symposium brings together over 350 researchers, theoreticians,
numerologists, software developers, and industrialists to review the state of the art
in the field's main lines of research and emerging themes.

T

The 2024 edition will take place from May 13 to 17, 2024. A "young" laboratoryorganizes it: the LMPS - Laboratoire de Mécanique Paris-Saclay - is a Joint
Research Unit (UMR 9026) of the University of Paris-Saclay, CentraleSupélec,ENS Paris-Saclay and CNRS. Created from the fusion of the Laboratoire deMécanique et Technologie (LMT) and the Laboratoire de Mécanique des Sols,
Structures et Matériaux (MSSMat), it was officially established on January 1, 2022.
The LMPS is also supported by SafranTech, which today accounts for 1/4 of the
Safran Group's Research & Technology effort.

Organisation
Head of the Organising Committee:•
Chairman:
Pierre-Alain BOUCARD, LMPS, Paris-Saclay•
Vice-Chairman:
Frédéric FEYEL, SafranTech & LMPS, Paris-Saclay
Scientific Committee•
President:
Paco CHINESTA, Arts et Métiers, Paris•
Vice-Presidents: Philippe BARABINOT, Siemens Digital Industries Software,
Châtillon Didier CLOUTEAU, CentraleSupélec, Gif-sur-Yvette
Congress Themes
The themes of the CSMA community will be addressed during the conference:•
Statics and Dynamics of Structures: beams, plates, shells, composite structures,
civil engineering structures, instabilities, vibrations of structures, rapid dynamics,
vibro-acoustics, nanosystems•
Lifespan of Structures: fatigue, damage, cracking, fracture•
Mechanics of Contact, Interfaces: friction, thin layers, methods and models forcontact, imperfect interfaces•
Numerical Methods: resolution and discretization techniques, model coupling,
multi-scale methods, X-FEM, DEM, MAN, data sciences for mechanics,
optimization•
Biomechanics and Engineering of the Living: biomaterials, biomimicry
iacm expressions 53/24 34

for all inclusions under CSMA please contact
David Néron
david.neron@ens-paris-saclay.fr
•

•
•
•

Models and Material Behavior: plasticity, viscoelasticity, viscoplasticity, damage,instabilities, multi-scale methods, multi-physical couplings, identification,
inverse methods
Engineering Augmented by data, learning and AI:
Numerical simulation and Data science in automotive mechanics
Numerical, mathematical and physical approaches to multi-scale problems:from discrete to continuous

Plenary Sessions
•

•
•

•
•

•

Laura de LORENZIS, ETH Zürich, Switzerland.
“Machine learning for solving PDEs in solid mechanics: many issues and a
few solutions.”
Olivier ALLIX, LMPS, ENS Paris-Saclay, France.
“A Swiss Army knife for coupling: non-intrusive approaches.”
Florence BERTAILS-DESCOUBES, INRIA Grenoble Rhône-Alpes, France.
“Numerical modeling of contacting fibers for cinema, inverse design ofstructures, and physical exploration.”
Eric LAROUR, JPL, California Institute of Technology, USA.
“To what extent can we predict sea-level rise by 2150?”
Marie JACQUESSON, CNES, Head of Thermal Structures and Materials forSpace Transport at the Technical and Digital Launchers Directorate.
“Space transport of tomorrow: system and technological challenges forstructures.”Ludovic STUMME, NAVAL GROUP, Head of Simulation Activity Sector,
Head of Calculation Simulation Domain, Senior Expert in Naval
Combat Simulation.
“From Digital Twins to Engineering 4.0: a passing trend or a necessary evil?”

CSMA Junior
In 2016, the CSMA association saw the creation of a section of young
researchers called CSMA Juniors. This section, targeting CSMA members
under the age of 40 (PhD students, post-docs, junior permanent staff) has
various objectives in line with the strong dynamism of the CSMA association.
The CSMA 2024 congress will be followed by a junior workshop on the islandof Porquerolles from May 17 to 19, 2024. l

35 iacm expressions 53/24

conference diary planner
13 m- 17 May 2024 CSMA 2024 – 16ème colloque national en calcul des structures
Venue:

Giens, France

Contact:

https://csma2024.sciencesconf.org/

3 - 7 June 2024 9th European Congress on Computational Methods in Applied Sciences and Engineering
Venue:

Lisbon, Portugal

Contact:

https://eccomas2024.org/,18 - 21 June 2024 7th ITC – International Conference on Geoetechnical and Geophysical Site Characterization
Venue:

Barcelona, Spain

Contact:

https://eccomas2024.org/

19 - 21 June 2024 CEACM / S4ML - Synergy between Multiphysics/Multiscale Modeling and Machine Learning
Venue:

Prague, Czechia

Contact:

https://ceacm.net/s4ml-2024

21 - 26 July 2024 WCCM/PANACM - 16th World Congress on Comp Mechanics & 4th PANACM Congress
Venue:

Vancouver, Canada

Contact:

https://www.cacse-accsg.ca/

12 - 14 Aug 2024 Second Thematic Conference on Uncertainty Quantification for Machine Learning Integrated Physics
Venue:

Arlington, Virginia

Contact:

https:/www.usacm.org

2 - 6 Sept 2024 Il Congresso AIMETA 2024
Venue:

Napoli, Italia

Contact:

https://www.aimeta.it/index.php/notizie/243-congresso-aimeta-2024

3 - 5 Sept 2024 DyCOMP2024/ECCCS3 - International Conference on the Dynamic Behaviour of Composites – DyCOMP
and European Conference on Crashworthiness of Composite Structures – ECCCS
Venue:

Sicily, Italy

Contact:

https://dycomp2024.cimne.com/

St. Augustine, Florida

Contact:

https:/www.usacm.org

27 - 30 Oct 2024 IGA 2024
Venue:

5 - 8 Nov 2024 MECOM 2024 - XL Argentine Congress on Computational Mechanics
Venue:

Rosario, Argentina

Contact:

https://amcaonline.org.ar/mecom2024/

26 - 29 May 2025 COUPLED 2025 - XI International Conference on Coupled Problems in Science and Engineering
Venue:

Sardinia, Italy

Contact:

https://coupled2025.cimne.com/

9 - 11 June 2025 ADMOS 2025 - XII International Conference on Adaptive Modeling and Simulation
Venue:

Barcelona, Spain

Contact:

https://eccomas2024.org/

23 - 27 June 2025 MARINE 2025 - XI International Conference on Computational Methods in Marine Engineering
Venue:

Edinburgh, Scotland

Contact:

https://eccomas2024.org/

1 - 4 July 2025 COMPSAFE2025 - 4th Computational Engineering & Science for Safety & Environmental Problems
Venue:

Kobe, Japan

Contact:

https://eccomas2024.org/

2 - 5 Sept 2025 COMPLAS 2025 - XVIII Int Conference on Computational Plasticity
Venue:

Barcelona, Spain

Contact:

https://complascourse2025.cimne.com/

9 - 11 Sept 2025 Sim-AM 2025 - The Fifth International Conference on Simulation for Additive Manufacturing
Venue:

Pavia, Italy

Contact:

https://sim-am2025.cimne.com/

14 - 17 Sept 2025 IGA 2025 -13th International Conference on Isogeometric Analysis
Venue:

Barcelona, Spain

Contact:

https://particles2025.cimne.com/

20 - 22 Oct 2025 PARTICLES 2025 - IX International Conference on Particle-based Methods
Venue:

Brisbane, Australia

Contact:

https://web.aeromech.usyd.edu.au

7 - 10 Dec 2025 9th APCOM 2025 - Asia Pacific conference on Computational Mechanics
Venue:

36

Brisbane, Australia

Contact:

https://web.aeromech.usyd.edu.au/ACCM2013/AACM/