A strain-rate dependent micro-mechanical model with progressive post-failure behavior for predicting impact response of unidirectional composite laminates

A new micro-mechanical model is developed to predict the behavior of unidirectional polymer matrix composite laminates under impact loading conditions and implemented in the non-linear finite element software LS-DYNA. This model accounts for the progressive post-failure behavior and strain-rate dependency of polymer matrix composites making it suitable for impact simulations. A continuum damage mechanics (CDM) based failure model is used to...