User-Defined Material Modelling of Woven Fabric Composites for Strain Rate Dependency and Nonlinear Shear Behaviors

Woven fabric composites are increasingly used in the automotive industry because of their high specific strength, stiffness, and energy absorption capabilities. Material modelling of woven fabric materials is essential to accurately predict their dynamic behaviors. Furthermore, during crash events, the material can reach deformation with strain rates of up to 500 1/s. Therefore, it is necessary to measure the material’s strain rate-dependent properties and incorporate the strain rate effects into the material model for explicit dynamic simulations. Therefore, a VUMAT in Abaqus was developed to simulate the rate dependency and nonlinear shear behaviors of woven fabric materials.