航空学报 > 1988, Vol. 9 Issue (7): 326-332

各型分枝裂纹的应力强度因子计算

王巍, 何庆芝   

  1. 北京航空航天大学
  • 收稿日期:1987-04-02 修回日期:1900-01-01 出版日期:1988-07-25 发布日期:1988-07-25

THE CALCULATION OF THE STRESS INTENSITY FACTOR FOR A GENERAL BRANCHED CRACK

Wang Wei, He Qingzhi   

  1. Beijing University of Aeronautics and Astronautics
  • Received:1987-04-02 Revised:1900-01-01 Online:1988-07-25 Published:1988-07-25

摘要: 本文利用Schwartz-Christoffel映射函数及Muskhelishvili的复变函数方法分析各型分枝裂纹问题。计算结果表明,用本文方法确定各种分枝裂纹的应力强度因子是完全可行的。

Abstract: In the present paper, by using Schwartz-Christoffel mapping function and Muskhelishvili' s method, the stress intensity factor (SIF) for L-shaped and Z-shaped and general branched cracks in two-dimentional elastic stress state was calculated. An approximate engineering method for predicting the SIF for a Z-shaped crack was also proposed.