Modeling the compression of three-dimensional fiber networks using dynamic finite element analysis.
Published: 2006
Language: eng
Number of pages: 112
ISBN-13: 9780494160756
Description: A numerical approach was developed to study the transverse compressibility of a 3-D fiber network, representing paper, under dynamic compression and to examine the relationship between this mechanical property and fiber characteristics using the commercial software ANSYS/LS-DYNA. A nonlinear stress-strain relationship was obtained for the compression of fiber network in the thickness direction. These results were comparable to those achieved experimentally for kraft handsheets using a highspeed micro-compression analyzer. The effect of fibers' mechanical properties on network compressibility was found to vary depending on the fiber mechanical parameters being examined. The degree of compression greatly affected the permanent strain of the network while the loading strain rate, in the range of 300--3000 s-1, had no significant effect. Furthermore, the change in surface roughness of this network due to compression was found to be proportional to the permanent strain of the network, regardless of the fiber mechanical properties.
Notes: Source: Masters Abstracts International, Volume: 44-06, page: 2882.

Thesis (M.A.Sc.)--University of Toronto, 2006.

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