中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 1988, Vol. 7 ›› Issue (3): 1-8.

• •    下一篇

表面裂纹前沿奇异性的边界元模型及其数值解

周裕峰, 张永元   

  • 收稿日期:1988-05-16 出版日期:1988-06-20 发布日期:2016-11-08

Boundary Element Modeling of the Stress Singularity at the Front of Surface Crack

Zhou Yufeng, Zhang Yongyuan   

  • Received:1988-05-16 Online:1988-06-20 Published:2016-11-08

摘要: 本文拓广了表面裂纹奇异性的研究范围,文中利用Mindlin基本解,提出了一种适用于裂纹体的新型边界元模型,并采用与Williams方法[1]不同的求解途径,直接求解了半圆、半椭圆表面裂纹尖端的应力场奇异性。

Abstract: A new boundary element method for the analysis of surface crack is proposed in this paper. The advantage of the boundary integral equation derived from this model is that only the surface of the crack need to be discretized. The singularities of stress in the boundary layer of half-elliptical surface crack are solved by using the new model.