Analysis of Surface Cracks at Hole by a 3-D Weight Function Method with Stressesfrom Finite Element Method

摘要

Parallel with the work in Part-1, stress intensity factors for semi-ellipticalsurface cracks emanating from a circular hole are determined. The 3-D weight function method with the 3D finite element solutions for the uncracked stress distribution as in Part-1 is used for the analysis. Two different loading conditions, i.e. remote tension and wedge loading, are considered for a wide range in geometrical parameters. Both single and double surface cracks are studied and compared with other solutions available in the literature. Typical crack opening displacements are also provided.