层合扁壳弹塑性弯曲的加权残值法

Elesto-plastic Analysis of Laminated Shallow Shalls by the Method of Weighted Residuals

采用弹塑性增量理论和各向异性问题中的 Huber- Mises屈服准则 ,推出了复合材料层合扁壳弹塑性弯曲分析的加权残值法基本公式 ,用增量加载和初应力法求解。算例证明 ,该法收敛较快 。

In this paper,the method of weighted residuals is employed to analyze the elasto plastic problems of Laminated anisotropic shallow shells.The elasto plastic incremental theory and the anisotropic Huber Mises yield criterion extended by Hill are introduced,and the basic iteration formulas of the problems are derived,which can be solved by the initial stresses method.Numerical examples demonstrate the accuracy and efficiency of the method.