用边界元法计算厚壁圆筒的应力强度因子  

The Calculation of Stress Intensity Factor in Thick Walled Cylinder by BEM

作　　者：刘勇[1] 

机构地区：[1]浙江工学院机械工程系

出　　处：《浙江工学院学报》1991年第3期52-56,共5页

摘　　要：本文用边界元法研究了在自增强残余应力作用下具有径向内表面单裂纹与对称双裂纹的厚壁圆筒的应力强度因子.文中采用了加载理想弹塑性、卸载为同时具有Bauschinger效应和应变硬化的材料模型.This paper presents the research work of -Stress intensity factors in thick walled cylinder with one radial crack and two symmetric radial cracks due to autofrettaged residual stress by the boundary element method. The material model which behaves perfect elastoplasticity at loading and strain hardening with Bauschinger effect at unloading is introduced.

关 键 词：圆筒 厚壁 边界元法 应力强度因子 

分 类 号：O346[理学—固体力学]