Effect of matrix and fibre cracks on static and fatigue strength of composite laminates

The effect of matrix and fibre cracks on the static strength stiffness uni-directional plies cross-ply laminates under tensile loads was examined with goal understanding main damage mechanisms. size emanating from cracked fibres determined found to be in excellent agreement test results. This used predict failure shown good results for six different materials. approach extended fatigue loading by determining number cycles plastic zone ahead a crack tip fail. It combined an quantify any in-plane previously developed authors changes laminate as function cycles. Comparisons showed between predicted measured