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인장-전단하중을 받는 IB형 일점 Spot용접 이음재의 응력분포와 피로강도평가
정원석(W.S.Jung),구재민(J.M.Koo),손일선(L.S.Sohn),배동호(D.H.Bae) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.11_1
Stress distribution on the IB-type single spot welded lap joint under tension-shear load were investigated by finite element method. And using the maximum principal stress at nugget edge obtained by FEM analysis, evaluated the fatigue strength of the IB-type spot welded lap joints having various dimensions. From the results, it was found that △P- N_f curves of specimens could be systematically rearranged by the maximum principal stress (?? lmax) at the edge of the nugget.