FATIGUE STRENGTH OF OVERLAP JOINT WITH TRANSVERSE FILLET WELD SUBJECTED TO OUT-OF-PLANE BENDING

Abstract

Fatigue strength of overlap welded joints in which transverse fillet welds were provided was investigated under an out-of-plane bending condition. Fatigue test results demonstrated the joints were failed by weld toe cracks, and the fatigue strength was equal to that of non-load carrying cruciform joints. When intermittent fillet welds were provided, the fatigue strength was reduced, but it was properly evaluated by using the hot spot stress approach.