抄録
Failure criteria are sets of mathematical rules used to predict the failure of a material under complex stressstates. Composite laminates fail progressively ply by ply, and progressive failure criteria are used to predict this behavior. Four major failure criteria, Maximum Stress, Tsai-Wu, Hashin, and Christensen failure criteria were compared in this study. By combining these failure criteria with simple progressive damage scheme, progressive failure criteria of composite laminates were formulated and evaluated. Good agreements between the predictions
and the test measurements were observed. The predicted final failure loads were observed to be insensitive to the choice of the failure criteria, although the predicted initial failure loads are different. We believe that the simple
progressive damage calculation shown in this paper is useful for the designers and engineers, and are ready to provide an easy-to-use Excel-based code for our progressive quadratic failure criterion.
