A Experimental Study on the Fatigue Strength Evaluation of Load-Carrying Weldments with Lack of Penetration

부분용입된 하중전달 십자형 용접부의 피로강도 평가에 관한 실험적 연구

In this study, constant amplitude fatigue tests on load-carrying fillet welded specimen carried out, and fatigue strengths were evaluated. Also, an attempt is made to develop a new analytical model with more accuracy to predict the fatigue crack propagation life of fillet welded cruciform joints of SWS 490B steels containing lack of penetration defects. from the result of this study, fatigue crack growth characteristics of load-carrying fillet welded cruciform joints, containing lack of penetration defacts are found to be affected by the weld geometry and the number of weld pass.