Some Applicable Stress Functions for an Isotropic Crack and an Interface Crack in In-plane Problems

Abstract

In this study, one set of stress function is shown on crack problem in an infinite isotropic plate. Features of obtained stress function are the plane elasticity problem that are common to both of an interface crack between two dissimilar elastic half planes and an infinite isotropic plate containing a central straight crack, and it is linearly independent at the crack tip. In some numerical examples, energy release rate for Young modulus ratio (E₁/E₂) has been obtained in an interface crack problem. Besides, the energy component of shearing stress has also been shown in these figures.