3D BE Analysis on Stress Intensity Factor of a Fatigue Crack in a Welded T-joint
LI Qiang,WANG Bo
DOI:10.11835/j.issn.1674-4764.2000.06.008
Received ,Revised May 01, 2000, Accepted , Available online July 01, 2015
Volume ,2000,Pages 29-33
- Abstract
In this paper, based on multi region boundary element method (BEM), a general procedure to calculate stress intensity factors(SIF) of a 3D mixed mode fatigue surface crack is detailed. A BEM model for a welded T joint is constructed referring to the test specimen. The crack corner points are indirectly estimated to circumvent the treatment of the different crack tip singularity at the corner regions. Numerical results from the welded T joint show that this procedure is reliable.