Abstract
In this research we address in detail a mode III radial matrix crack penetrating a circular inhomogeneity. One tip of the radial crack lies in the matrix, while the other tip of the radial crack lies in the circular inhomogeneity. In addition the two tips of the crack are mutually image points (or inverse points) with respect to the circular inhomogeneity-matrix interface. First we conformally map the crack onto a unit circle C a in the new ζ -plane. Meanwhile the inhomogeneity-matrix interface is mapped onto C b , a part of another circle in the ζ -plane. In addition C a and C b intersect at a vertex angle π /2. By using the method of image in the ζ -plane, closed-form solutions in terms of elementary functions are derived for three loading cases: (1) remote uniform antiplane shearing; (2) a screw dislocation located in the unbounded matrix; and (3) a radial Zener–Stroh crack.
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