Progressive Failure Modeling for Dynamic Loading of Woven Composites

A three parameter constitutive model was developed for representing tensile progressive damage of the nonlinear large-deformation rate-dependent behavior of polymer-based composite materials, which was characterized using off-axis composite specimens. A strain based failure criterion was proposed that reduces data for different loading directions and strain rates to a single representation. A method of combining the nonlinear constitutive theory and the failure strain methodology for different strain rates is suggested. The strength of the material was successfully represented with a single material constant, for all strain rates and tensile loading directions.