A progressive intraply material deterioration and delamination based failure model for the crashworthiness of fabric composite corrugated beam: Parameter sensitivity analysis

A high-accuracy progressive failure model based on continuum damage mechanics (CDM) is proposed to simulate the quasi-static axial crushing of composite corrugated beam. To predict various physical phenomena, both of the intra-ply damage and inter-ply interface damage are considered. The damages of intra-ply fiber and matrix are initiated with stress failure criteria and progressive damage propagation is modeled with a stiffness discount method...