摘要
本文根据板壳非线性有限元的基本理论，考虑几何和材料双重非线性，导出了分析板壳非线性问题的曲壳有限元法，并编制了计算程序。文中考虑了初始缺陷的影响，对板件在往复荷载作用下屈曲后性能和全过程性状进行了计算分析，并与试验结果进行了比较。
Based on the theory of nonlinear finite element of plates and shells, a nonlinear analysis program has been compiled. This program is used to calculate and analyse the post-buckling properties of plate elementS With initial imperfections under uniaxial cyclic loading.
