ANTIPLANE PROBLEM OF CURVILINEAR CRACKS IN BONDED DISSIMILAR MATERIALS

A general solution to the antiplane problem of curvilinear cracks in b onded dissimilar materials is provided. The analysis is based upon the Hilbert problem formulation and the technique of analytical continuat ion. To illustrate the use of the present approach, detailed results a re given for a single circular-arc crack lying along the interface bet ween dissimilar materials. The expressions of the complex potentials a re derived explicitly in both the unit disk and the surrounding medium . Both the stress intensity factors and contact stress are provided in an explicit form and the former are verified by comparison with exist ing ones. The effect of material and geometrical parameters upon the c ontact stress and stress intensity factors has also been discussed and shown in graphic form.