国际设备工程与管理（英文版）2007，Vol.12Issue(2)：93-100,8.
Weight Function Method for Stress Intensity Factor of Internal Surface Semi-elliptical Crack in Elliptical Holes
Weight Function Method for Stress Intensity Factor of Internal Surface Semi-elliptical Crack in Elliptical Holes
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作者信息
- 1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P. R. China;School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- 折叠
摘要
Abstract
The hatches for inspecting are usually designed with elliptical holes in airplane structures, so computation of the stress intensity factor of three dimensional crack at elliptical holes is pivotal for damage tolerance analysis of these structures. In this paper, weight function is derived for a two dimensional through cracks at elliptical holes by applying a compounding method. Stress intensity factor formulas for an internal surface semi-elliptical crack in elliptical holes are obtained using the three dimensional weight function method. Stress intensity factors for an internal surface semi-elliptical crack in elliptical holes under remote tension are computed. At the same time, research on how radius of curvature for elliptical holes affect stress intensity factors was conducted. Stress intensity factors decrease when radius of curvature increases. Some results and conclusions which are of practical value are given.关键词
compounding method/internal surface semi-elliptical crack/stress intensity factor,weight function/elliptical holesKey words
compounding method/internal surface semi-elliptical crack/stress intensity factor,weight function/elliptical holes分类
建筑与水利引用本文复制引用
..Weight Function Method for Stress Intensity Factor of Internal Surface Semi-elliptical Crack in Elliptical Holes[J].国际设备工程与管理（英文版）,2007,12(2):93-100,8.
