厚壁圆筒自紧问题的弹粘塑性有限元分析  

Elasto-Visco-Plastic Finite Element Analysis ofSelt-Enhanced Thick Cylinder

作　　者：刘锋[1] 李丽娟[1] 梅占馨[1] 

机构地区：[1]青岛化工学院,西安冶金建筑学院

出　　处：《应用力学学报》1994年第3期133-136,共4页Chinese Journal of Applied Mechanics

摘　　要：在双剪应力强度理论的基础上，应用弹粘塑性模型求解厚壁圆筒自紧问题，算例表明，这一算法是可行有效的。Based on Twin-Shear-Stress-Yield Criterion, the elasto-visco-plasticity theory is used to solveself-enhanced thick cylinder. The associated flow rule of the traditional elasto-plastic mechanics is con-sidered to be effective in the elasto-visco-plastic finite element model, therefore, the elasto-visco-plas-ticity finite element equation is obtained in which Twin-Shear-Stress function is utilized to calculate theplastic strain increments. The method proposed by this paper is,rogrammed to carry out circumferen-tional stress distribution in the self-enhenced thick cylinder. The results show the method in this paperis effective when compared with experiment data.

关 键 词：剪应力 有限元 自紧 弹塑性问题 厚壁圆筒 

分 类 号：O344.3[理学—固体力学]