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Failure in anisotropic nonwoven materials at finite deformation
Author(s) -
Raina Arun,
Linder Christian
Publication year - 2014
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201410176
Subject(s) - discontinuity (linguistics) , anisotropy , materials science , deformation (meteorology) , finite strain theory , kinematics , microstructure , work (physics) , affine transformation , mechanics , composite material , finite element method , structural engineering , physics , geometry , classical mechanics , optics , mathematics , engineering , mathematical analysis , thermodynamics
The current work proposes a finite deformation strong discontinuity approach based modeling of failure in anisotropic materials with reorientation based micromechanical network model for the bulk response. These materials consist of randomly cross‐linked one dimensional filaments at their microstructure which undergo non‐affine deformation as well as reorientation upon loading before undergoing complete failure. The computationally efficient strong discontinuity approach allows to capture the failure kinematics by introducing a local problem where a strong discontinuity exists, thereby leading to an enhanced deformation gradient. A precise evaluation of the bulk response is done by homogenizing the physical microscopic response of constituent filaments where reorientation is introduced with an initial straightening effect of fiber undulations. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)