A Strain Rate Dependent Damage Model for Evaluating the Dynamic Response of CFRTP Laminates with Different Stacking Sequence

Carbon fiber reinforced thermoplastic polymer (CFRTP) laminates can be used in packaging electronics components to reduce weight and shield external disturbance. The CFRTP structures operation are inevitably suffer dynamic loading conditions such as falling rocks, tools impacts. In this study, a strain rate dependent material model for accurately evaluating the response of with different stacking sequence was proposed. composed three components: constitute model, related damage initiation an energy-based evolution model. effect modulus strength described by matrix, could describe delamination without introducing cohesive elements. implemented into finite element software ABAQUS user defines subroutine VUMAT. low velocity impact tests quasi-isotropic angle-ply were provide validation data. from numerical results highly consistent experimental results. mechanical affected energy, error proposed significantly decreased increasing energy especially laminae occur.