chapter  10
Pages 24

Delamination is a frequent mode of failure affecting the structural performance of composite laminates. The interface between layers offers a low-resistance path for crack growth because the bonding between two adjacent layers depends only on matrix properties. Delamination may originate from manufacturing imperfections, cracks produced by fatigue or low velocity impact, stress concentration near geometrical/material discontinuity such as joints and free edges, or due to high interlaminar stresses.