Parametrically Homogenized Continuum Damage Mechanics (PHCDM) Models for woven composites

In woven composite material, microscopic damage phenomena including fiber-matrix interface debonding, fiber breakage, and matrix fracture will subsequently result in macroscopic failure behaviors. Conventional detailed micromechanical models for predicting the effective composite material property are limited to microscale due to high computational cost. Continuum damage approaches always neglect the microscopic response. The parametrically homogenized continuum damage mechanics (PHCDM) model presents a framework of multiscale damage modeling to predict micro-macro response in composites material. In this presentation, the PHCDM model is applied to calibrate damage behavior across various woven composites material length scales. The effect of microstructural morphology and material properties on macroscopic failure behaviors is studied through the representations of the parametrically homogenized constitutive laws. The PHCDM model is compared with experiments for the macroscopic problem.