Reference number : GC-2017-Q2-00486, amendment number : , agreement type : G, recipient legal name : Taiebat, Mahdi (The University of British Columbia), recipient country : CA, recipient province : nan, recipient city : British Columbia|Colombie-Britannique, recipient postal code : nan, program name english : Engage Grants for Universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : The future of modeling in geotechnical earthquake engineering will be based almost exclusively on_x000D_
Performance-Based Seismic Design philosophy that is based on displacements or deformations. A realistic_x000D_
numerical simulation of deformation of geo-structures subjected to earthquake loading is very complex. While_x000D_
there are many advanced tool available, one of the main questions raised when results of a numerical analysis_x000D_
are evaluated is: "How much can (should) we trust numerical simulations?" Trust in results obtained from_x000D_
numerical analysis is gained through verification and validation. Verification determines if the numerical_x000D_
model is correctly being solved for the intended mathematical equation of interest, while validation establishes_x000D_
the level of representativeness of the model. This proposal will conduct a detailed and critical verification of_x000D_
the program FLAC3D for the problem of seismic wave propagation. The verification will consist on evaluating_x000D_
the numerical accuracy of the program by comparing its performance to a suite of mathematical solutions_x000D_
regarding elastodynamic and poroelastodynamic problems. Crucial elements of numerical modeling such as_x000D_
spatial and temporal discretization, and initial and boundary conditions will be investigated together with the_x000D_
embedded coupled formulation of solid-fluid interaction. Furthermore, an advanced nonlinear model newly_x000D_
implemented in the program will be evaluated in comparison to the one in OPENSEES program for a variety of_x000D_
verification problems. These computational platforms and the intended model are being increasingly used in_x000D_
academia and advanced engineering practice, and for that reason this study is a paramount step towards_x000D_
supporting further research on advanced numerical simulation of seismic wave propagation. Results from this_x000D_
proposal will also allow a better understanding of the mechanics at play during modelling of earthquake waves_x000D_
enabling the Canadian professional practice to use outcomes of this study to develop safer, more reliable, and_x000D_
more economical designs., program purpose french : The future of modeling in geotechnical earthquake engineering will be based almost exclusively on_x000D_
Performance-Based Seismic Design philosophy that is based on displacements or deformations. A realistic_x000D_
numerical simulation of deformation of geo-structures subjected to earthquake loading is very complex. While_x000D_
there are many advanced tool available, one of the main questions raised when results of a numerical analysis_x000D_
are evaluated is: "How much can (should) we trust numerical simulations?" Trust in results obtained from_x000D_
numerical analysis is gained through verification and validation. Verification determines if the numerical_x000D_
model is correctly being solved for the intended mathematical equation of interest, while validation establishes_x000D_
the level of representativeness of the model. This proposal will conduct a detailed and critical verification of_x000D_
the program FLAC3D for the problem of seismic wave propagation. The verification will consist on evaluating_x000D_
the numerical accuracy of the program by comparing its performance to a suite of mathematical solutions_x000D_
regarding elastodynamic and poroelastodynamic problems. Crucial elements of numerical modeling such as_x000D_
spatial and temporal discretization, and initial and boundary conditions will be investigated together with the_x000D_
embedded coupled formulation of solid-fluid interaction. Furthermore, an advanced nonlinear model newly_x000D_
implemented in the program will be evaluated in comparison to the one in OPENSEES program for a variety of_x000D_
verification problems. These computational platforms and the intended model are being increasingly used in_x000D_
academia and advanced engineering practice, and for that reason this study is a paramount step towards_x000D_
supporting further research on advanced numerical simulation of seismic wave propagation. Results from this_x000D_
proposal will also allow a better understanding of the mechanics at play during modelling of earthquake waves_x000D_
enabling the Canadian professional practice to use outcomes of this study to develop safer, more reliable, and_x000D_
more economical designs., agreement title english : Numerical simulation of seismic wave propagation: solution verification, agreement title french : Numerical simulation of seismic wave propagation: solution verification, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-08-23, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada