摘要
采用将系数矩阵表达为对称部分和非对称部分之和，对对称部分按通常的步骤进行凝聚、集成，对非对称部分做特殊处理的方法实现了对二维弹性力学中无体力Ｇａｌｅｒｋｉｎ边界元子域法．包括粘合裂纹扩展的算例证明了上述方法的有效性．
Subdomain technique of Galerkin symmetric boundary element method in 2dimensional elastic analyses without body forces is developed by regarding the coefficient matrix as the sum of a symmetric part and a nonsymmetric one. The symmetric part can be eliminated and assembled as normal, but the nonsymmetric part must be specially dealt with. Examples including the emulation of the cohesive crack propagation demonstrate the effectiveness.
出处
《固体力学学报》
CAS
CSCD
北大核心
1997年第4期365-370,共6页
Chinese Journal of Solid Mechanics
基金
中国自然科学基金
博士点基金
关键词
边界元
子域法
粘合裂纹模型
伽辽金
弹性力学
Galerkin boundary element method, subdomain technique, cohesive cracks model
