摘要
基于哈密顿原理的两种材料界面裂纹奇性研究张洪武，钟万勰，李云鹏（大连理工大学工程力学研究所，大连，１１６０２４）摘要＊研究了两种材料组成的弹性体在交界面上含裂纹时的裂纹尖端奇异场．通过变量代换及变分原理，将平面弹性扇形域的方程导向哈密顿体系，从而可通...
The stress singularity of the tip of crack at the interface of bimaterial elastic body is considered. The governing equations of plane elasticity for sectorial domain are derived in Hamiltoman form by using variable substitution and variational principle.The methods of separation of variables and conjugate symplectic eigenfunction expansion are developed for solving the equations in sectorial domain.The general formulations of solving the singnlarity of the crack tip at bimaterial interface are put forward.
出处
《固体力学学报》
CAS
CSCD
北大核心
1996年第1期19-30,共12页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金
关键词
界面裂纹
断裂力学
哈密顿原理
interface crack
fracture mechanics
Hamiltonian principle
