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二维蠕变损伤的有效模量法及有限元分析
Effective modulus methods in 2-dimemsional creep damage problems and finite element analysis
【摘要】 建议了二维蠕变损伤问题的有效模量法,基于热动理论提出了一个损伤演化方程,给出有效模量法和有效应力法的有限元解,并对西种方法进行了数值比较。
【Abstract】 This paper presents an effective modulus method in 2-dimensional creep damage problems. An evolution equation of damage is proposed based upon the thermodynamic theory. Nonlinear finite element analysis are given for both effecfive modulus and effective strese models. Two models are compaled numerically.
【关键词】 蠕变;
损伤;
有效模量;
有限元;
差分;
【Key words】 creep; damage; effective modulus; effective stress; finite element; difference;
【Key words】 creep; damage; effective modulus; effective stress; finite element; difference;
【基金】 中科院地质所的资助
- 【文献出处】 计算结构力学及其应用 , 编辑部邮箱 ,1996年02期
- 【分类号】TB115
- 【被引频次】4
- 【下载频次】122