基于弹性解的结构弹塑性应力分析方法

Method of Elastoplastic Stress Analysis of StructureBased on Elastic Solution

以弹塑性力学的模型理论和塑性力学形变理论为基础，提出了一个由试验或计算获得的弹性解，按原型材料的广义应力与广义应变关系曲线，以及塑性力学伊留申理论，将弹性解转换为相应结构中的弹塑性应力解的分析方法。实验结果表明，本方法是正确、可行的。

ased on the model theory of elastoplastic theory and the plastic deformation theory, an analytical method is shown in this paper. The method is achieved by the step: first, the elastic solution is obtained from experiment or computation, and then, based on generalized stressstrain curve of material and Iliushin theory of plasticity, this elastic solution is transformed into elastoplastic stress solution in the related structures. It is shown by examination that the method is reasonable.