A complete parabolic shear-lag model containing delamination damage

A complete parabolic shear-lag model containing delamination damage induced by transverse cracks was proposed and applied to predict the stiffness reduction by transverse cracking in cross laminated composite materials. The relation of stress and transverse crack density was also studied. The predictions from the incomplete parabolic shear-lag analysis model, the complete parabolic shear-lag analysis model and the analysis model proposed in this paper have been compared. Results show that the Young's modulus reduction values obtained by our analysis model are better agreement with the experimental ones than other models.