摘要
在近似解析的基础上 ,采用渐近 (极限 )修正的方法 ,推出有限域中 3个典型的孔。
Based on an approximate analysis, simple closed-form solutions of stress concentration factor and stress intensity factor for three typical models of circular hole, spherical cavity, and crack in finite domains are derived respectively. Then a method of asymptotic modification, which matches the derived solution at the limit point with the exact result, is adopted to improve the accuracy especially for large hole (sphere) radius or crack length. Finally three high-accuracy expressions for these finite domain problems are formulated, they either fill in the vacancy of missing solutions in the literature, or have better accuracy than several empirical solutions given in handbooks.
出处
《机械强度》
EI
CAS
CSCD
北大核心
2001年第3期358-361,共4页
Journal of Mechanical Strength
基金
国家自然科学基金资助项目 (1 9872 0 4 6)~~
关键词
应力集中系数
应力强度因子
有限域
工程结构
Stress concentration factor
Stress intensity factor
Expressions in finite domain
