Analytical study on low compressive strength of composite laminates with impact damage

This paper analytically investigates the mechanism of compressive strength reduction of composite laminated plates due to impact damage in quasi-isotropic laminates. Simplified mechanistic models are proposed. Explicit form solutions including the upper and lower bounds of applied load against end-shortening are derived for the local post-buckling stage by using the numerically derived load vs. end-shortening relationship of a square plate whose...