Stress Intensity Factor for Cracks at the Toe of Welded Joints
This paper proposes a method for evaluation of the Stress Intensity Factors (SIFs) of embedded cracks lying along the bisector of the welded toe angle. The SIFs are calculated on the basis of the JV parameter (extension of the J-integral to a sharp V-notch) for a path radius equal to the crack extension without modelling the crack. The numerical calculations in the paper show the stability of the proposed method also with course meshes.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
P. Livieri and R. Tovo, "Stress Intensity Factor for Cracks at the Toe of Welded Joints", Key Engineering Materials, Vols. 348-349, pp. 257-260, 2007