Delamination propagation criterion including the effect of fiber bridging for mixed-mode I/II delamination in CFRP multidirectional laminates

Large-scale fiber bridging developed in the CRFP multidirectional (MD) laminates upon mixed-mode I/II fracture has a significant effect on the delamination behavior. Without considering the effect of fiber bridging, traditional delamination propagation criteria fail to evaluate the delamination behavior in MD laminates. To solve this problem, an improved criterion is proposed here, which accounts for the delamination resistance curve (R-curve)...