Analysis of intensity of singular stress field for single lap joint under tensile shear load based on crack tip stress method

摘要

In this paper, the crack tip stress method (CTSM) is extended so that the intensity of the singular stress field of the single lap joint (SLJ) with two real stress singularity orders can be analyzed. Two types of the reference models are proposed; one is the tensile force model; the other one is the shear force model. The intensities of the singular stress field of the SLJ are calculated by superposing those of the reference models. The intensities of the singular stress fields of the reference models are calculated by the reciprocal work contour integral method (RWCIM). Then the validity of the reference models and the accuracy of the present method are discussed by comparing the present results with the solutions which are calculated by the RWCIM.