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弹性与弹塑性问题的有限元与边界元耦合解法
Coupling Method of FEM and BEM of Elastic and Elasto-plastic Problems
【摘要】 本文提出了一种新的弹性与弹塑性问题的对称耦合解法。根据分区广义变分原理,直接导出问题的求解方程式。通过典型算例,验证了该方法的有效性,本文建议的方法与超单元形式的耦合法相比,在理论上比较直接,在计算上更为经济。
【Abstract】 This paper presents a new symmetric coupling approach of BEM and FEM of elastic and elasto-plastic problems. Based on the sub-region generalized variational principle, the solving equations of the problem are derived directly. The validity of the proposed method is demonstrated by typical examples. In comparison with the super-element method, the new approach has the advantages of being more straight in the theory and more economical in computation.
【关键词】 有限元法;
边界元法;
对称耦合法;
变分原理;
弹性;
弹塑性;
【Key words】 FEM; BEM; symmetric coupling; variational principle; elastic; elasto-plastic;
【Key words】 FEM; BEM; symmetric coupling; variational principle; elastic; elasto-plastic;
- 【文献出处】 计算结构力学及其应用 , 编辑部邮箱 ,1993年04期
- 【被引频次】5
- 【下载频次】132