复合材料含损伤结构剩余强度分析

考虑层压结构受冲击后的“花生壳形”分层及分层损伤引起的局部不对称性和耦合效应，并考虑压缩加载过程中可能出现的多层分级屈曲，发展一种计算低能冲击层压板受压剩余强度计算方法。数值分析表明本文的预测结果与试验结果吻合良好。

ANALYSIS OF RESIDUAL COMPRESSIVE STRENGTH OF IMPACT DAMAGE COMPOSITE

Under the consideration of laminate peanut shape delamination caused by low energy impact and local unsymmetry with the delamination as well as their coupling effect. A numerical analysis method is developed for calculating the residual compressive strength of laminates in low energy impact, including considering effect of multiply classify yields of laminates. The numerical analysis show that the prediction agrees fairly well with the experimental results.