The experimental result shows that there exists obvious interlaminar stress concentration phenomenon near the free and loading edges, and this phenomenon disappears soon away from the edges.

• 本文对复合材料层合结构自由边效应进行了实验研究,得到了自由边效应的分布规律,即层间应力在自由边界和载荷边界附近有明显的应力集中,在离开边界的地方应力集中现象很快消失。