Experimental Analysis and Orthotropic Hyperelastic Modelling of Textile Woven Fabric

This paper presents an experimental study and hyperelastic modelling of orthotropic mechanical behavior of woven textile fabric. The strain energy function of the hyperelastic model is a combination of the warp extension, weft extension, and shear angle between warp and weft directions. The experimental and fitting analysis of the anisotropy is realized using off-axis tensile tests for five textile woven fabrics. Orthotropic hyperelastic modelling highlights the anisotropy tensile property of textile woven fabric compared to orthotropic linear elastic modelling. Particular attention is given to the influence of weave structure on fabric anisotropy.