基于中厚壳几何非线性理论和损伤理论,采用应变描述的失效准则,导出了层合浅球壳含基体损伤和纤维-基体剪切损伤的损伤本构关系,建立了低速冲击下轴对称正交对称铺设层合中厚浅球壳的非线性运动控制方程.对未知函数在空间域采用正交配置法离散,时间域采用Newmark-β方法离散,对整个问题进行迭代求解.数值结果表明,损伤、冲击物的初速度以及结构的几何参数都在不同程度上影响着低速冲击下结构所受的冲击载荷和结构的非线性动力响应.
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