Analysis of progressive fiber debonding in elastic laminates (Q1434664)

The authors develop an analysis for evaluation of the overall response of symmetric laminates under in-plane loads, while undergoing progressive fiber debonding in the individual plies. The method is a micro/macro-mechanical analysis, which connects events at the local scale to the laminate structural scale through stress transformation factors. The solution is obtained by a coupled closed-form analysis for the laminate, and finite element analysis for the plies. The authors note that although the focus in the present paper was on fiber debonding caused by mechanical loads, the proposed analysis can be utilized for other forms of local damage and applied loads.