Finite element analysis of bias extension test using an orthotropic hyperelastic continuum model for woven fabric
Résumé
In this paper, an orthotropic hyperelastic model of woven fabric has been developed. The model is coded in Abaqus/Explicit using subroutine Vumat. The work reported here covers the influence of the ratio between shearing and tensile rigidities of woven fabric on stress and strain fields. Numerical results from bias extension tests on samples of three aspect ratios are compared to those predict by the theory. This study proved that the shearing deformation depends not only on the specimen dimensions but also on the ratio between shearing and tensile rigidities of woven fabric.