厚壁园筒弹塑性的有限元分析

Elastoplastic Analysis of Thick Cylinders By Using Finite ElementMethod

为了更有效地利用材料，可以采取对厚壁园筒预加压力的方法。本文推导出四种关于厚壁园筒弹塑性分析的有限元公式，编制了计算园筒弹塑性应力以及确定弹塑性交界面的计算程序，并列举出大量实例进行比较和分析。

For more efficient use of rnaterials thick cylinders sometimes prestresed by an initial pressure. In this investigation four kinds of finite element formulas are developed forelastoplastic analysis of cylindere and an iterative scherne is described for finding the position of the interface. A number of examples are illustrated and a satisfatory convergence rateis demonstrated.