摘要
本文系统地讨论了以下三个问题:(1) 有限元与边界元耦合中的几个数值问题,其中包括:边界积分方程的凝聚、等效刚度矩阵的对称化及面力不连续的处理;(2) 弹塑性有限元与弹性边界元的耦合;(3) 弹粘塑性有限元与弹性边界元的耦合及数值计算稳定性条件。
The paper systematically deals with the following three problems: (1). Some numerical schemes in coupling FEM and BEM: including condensation of boudary integral equation, symmetrization of equivalent stiffness matrix and treatment of traction discontinuity, (2). Coupling of elastoplastic finite elements to elastic boundary clemens, (3). Coupling of clastoviscoplastic finite elements to elastic boundary elements and numerical stability condition.
出处
《固体力学学报》
CAS
CSCD
北大核心
1991年第1期23-32,共10页
Chinese Journal of Solid Mechanics
关键词
非线性
有限元
弹性
边界元
耦合
elastoplasticity, elasto-viscoplasticity, stability condition, coupling FEM to BEM.
