On stress distribution and fatigue strength of a single elliptical spot-welded lap joint under tension-shear load
by D.H. Bae, J. Niisawa, A. Koiso
International Journal of Vehicle Design (IJVD), Vol. 10, No. 3, 1989

Abstract: Stress distributions in a single elliptical spot-welded lap joint under tension-shear load were investigated by the finite-element method. It was found that the maximum axial stress at the nugget edge of a laterally long elliptical nugget is lower than that of round nuggets with the same area. Using the maximum axial stress at the nugget edge as the fatigue strength, S-N curves of specimens with various dimensions and nugget ellipticities converge to nearly one line.

Online publication date: Mon, 26-May-2014

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