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Direct simulations of fiber network deformation and failure
- Source :
-
Mechanics of Materials . Aug2012, Vol. 51, p1-14. 14p. - Publication Year :
- 2012
-
Abstract
- Abstract: A finite element model for 3D random fiber networks was constructed to simulate deformation and failure behavior of networks with dynamic bonding/debonding properties. Such fiber networks are ubiquitous among many living systems, soft matters, bio-materials, and engineering materials (papers and non-woven). A key feature of this new network model is the fiber–fiber interaction model that is based on AFM measurements from our earlier study. A series of simulations have been performed to investigate strain localization behavior, strength statistics, in particular, the variations of strength, strain-to-failure and elastic modulus, and their size dependence. Other variables investigated are fiber geometries. The result showed that, in spite of its disordered structure, strength and elastic modulus of a fiber network varied very little statistically, as long as the average number of fibers in the simulated specimen and the degree of fiber orientation are kept constant. However, strain-to-failure showed very significant statistical variations, and thus more sensitivity to the disordered structures. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01676636
- Volume :
- 51
- Database :
- Academic Search Index
- Journal :
- Mechanics of Materials
- Publication Type :
- Academic Journal
- Accession number :
- 76334456
- Full Text :
- https://doi.org/10.1016/j.mechmat.2012.03.010