Finite element analysis of stress intensity factors in the cracking of brittle materials under biaxial loading

摘要

The present study evaluates the von Mises stress distribution around the crack tip and stress Intensity Factor (SIF) under biaxial mixed modes during the propagation of a crack interacting with two nearby circular inclusions. The finite element method is used for determination of stress intensity factors by ABAQUS software. The stress field and the SIF are determined for different crack's length. A brittle material such as a glass having an equivalent elasticity modulus and a Poisson rain this research work. Besides, the proposed model is a rectangular specimen with an edge crack subjected to tensile stresses according to the modes (I & II) of rupture. Obtained results are compared and agreed with those determined by other researchers.