Abstract
Stress intensity factors (SIFs) of two eccentric and asymmetric surface cracks and surface-corner cracks at a hole are rare in the literature, since the problem is too complicated to be tackled by analytical methods and too costly by numerical approaches. A 3D slice synthesis weight function method (SSWFM) is developed to compute their 3D SIFs. The results agree well with those from finite element method (FEM). The SSWFM is about 450 times faster in calculation of the SIFs than FEM/Franc3D, and is very useful for 3D fatigue crack growth analyses of complicated surface and corner cracks at a hole.
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