圆柱壳在静水压力作用下的弹塑性稳定

The Elastoplastic Stability of Cylindrical Shells Under the Action of Hydrostaic Pressure

本文推导出大挠度圆柱壳在静水压力作用下弹塑性稳定问题增量形式的基本方程,并采用伽辽金配点法分析了两端简支圆柱壳的算例,所得计算结果与已有文献和实验结果基本一致。

The stability of cylindrical shells subjected to hydrostatic pressure is analysed in con- sideration of geometric and material nonlinearities by the method of weighted residuals. The incremental governing differential equations are derived and solved by Galerkin-collocation method. Numerical calculations are performed for shells with dif- ferent geometrical parameters and material properties. The calculation rcsults are in good apreement with those obtained by other authors in their works. The theory and method in this paper can also be used to analyse other problems of plates and shells.