Calculation of line singularity fields near a crack tip.

The present paper proposes a solution for the problem of an internal stress source located near a crack tip in generalized plane stress or plane strain conditions. Cauchy integration is avoided and only the knowledge of the Laurent's expansion coefficients of the bulk field potentials is required. Since in many cases of interest only a few and directy available bulk coefficients come into play, it is concluded that the obstacle of the mathematical complications, encountered in dealing with plane elasticity, may be noticeably reduced by using the present results.