SINGULAR STRESS-FIELD NEAR A CORNER OF JOINTED DISSIMILAR MATERIALS UNDER ANTIPLANE LOADS

In this paper the characteristics of the stress fields near a comer of jointed dissimilar materials under antiplane loads are studied. It is found that the singular stress fields due to the antiplane loads can be divided into two types: a symmetric type with the stress singularity of 1/r1-lambda1 and a skew-symmetric type with the stress singularity of 1/r1-lambda2. If G2<G1, there exists only singularity of the skew-symmetric type, and if G2>G1, there exists only singularity of the symmetric type. An expression of stress field in the vicinity of the comer is presented. Based on this expression, the singular stress field is described always in terms of the constant K(III,lambda1) for the symmetric type or the constant K(III,lambda2) for the skew-symmetric type alone.