摘要
本文采用边界元的位移不连续法、为了反映物体缺陷的应力集中现象，在缝端设置奇异 元，同时用ＦＯＴＲＡＮ语言编出计算机程序，对多裂体及多裂纹重力坝进行线弹性断裂分析，结 果表明位移不连续边界元法对求解多裂纹问题是很有效的．
In this paper,the displacement discontinuous method or BEM has been used, and the singular boundary elements have been applied to the crack tip of the body to reflect stress concentration of the body with flaw. The computer programs have been worked out in FORTRAN language. Purthermore, with the help of the programs, the bodies with multiple cracks and a gravity dam with multi-cracks have been analyzed by using linear elastostatic fracture Mechanics' Method. The results obtained show that the displacement discontinuous method is quite efficient for solving multi-cracks problems.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
1991年第2期90-95,共6页
Journal of Fuzhou University(Natural Science Edition)
关键词
重力坝
多裂纹体
奇异元
断裂力学
singular element
multi-cracks
stress concentration
displacement discontinuous method
BEM
fracture machanics
