Stress concentration factor expression for tension strip with eccentric elliptical hole

被引：13
|
作者：
Luo, Lin [1 ,2 ]
Xiang, Yu [1 ]
Wang, Qi-zhi [1 ,2 ]
机构：
[1] Sichuan Univ, Dept Civil Engn & Appl Mech, Chengdu 610065, Peoples R China
[2] State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China
来源：
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION | 2012年 / 33卷 / 01期
基金：
中国国家自然科学基金;
关键词：
stress concentration factor; explicit expression; eccentric elliptical hole; central elliptical hole; tension finite-width strip; semi-analytical method;
D O I：
10.1007/s10483-012-1537-7
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Two explicit expressions of the stress concentration factor for a tension finite-width strip with a central elliptical hole and an eccentric elliptical hole, respectively, are formulated by using a semi-analytical and semi-empirical method. Accuracy of the results obtained from these expressions is better, and application scope is wider, than the results of Durelli's photo-elastic experiment and Isida's formula. When eccentricity of the elliptical hole is within a certain range, the error is less than 8%. Based on the relation between the stress concentration factor and the stress intensity factor, a stress intensity factor expression for tension strips with a center or an eccentric crack is derived with the obtained stress concentration factor expressions. Compared with the existing formulae and the finite element analysis, this stress intensity factor expression also has sufficient accuracy.
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页码：117 / 128
页数：12
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