关键词: 组合法, 片条合成法, 角裂纹, 应力强度因子, 权函数, 椭圆孔

Abstract:

The hatches of the inspection are usually designed with elliptic holes in airplane structures,so the computation of the stress intensity factor of three dimensional cracks at elliptic holes is pivotal for damage tolerance analysis of these structures.In this paper the weight function of crack at elliptic holes is given by applied compounding method.Stress intensity factor′s formula of corner crack,applied the slice synthesis method,is gained.Stress intensity factor of corner crack at elliptic holes under remote tension is computed.

Key words: compounding , method,  , slice , synthesis , method,  , corner , crack,  , stress , intensity , factor,  , weight , function , method,  , elliptical , hole