对复合材料开口补强层合板进行压缩试验研究.对复合材料开口非补强和开口补强层合板建立有限元模型,采用三维8节点厚壳单元(S8R),分别利用非线性分析和线性分析方法对复合材料的应力-应变响应进行模拟.通过试验数据与数值结果对比发现,几何非线性分析方法较线弹性分析方法能更好地符合试验结果.通过编制材料子程序(UMAT)来预测材料的损伤萌生和扩展,预测的应力-应变响应、损伤扩展、失效强度基本与试验结果一致.
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