It was noted that the Stroh formalism was an elegant and powerful means for treating 2-dimensional deformations of anisotropic elastic solids, and had been extended to the treatment of anisotropic piezoelectric materials. However, the formalism did not apply to inhomogeneous materials. A different approach was used here in order to solve the problem of an angularly inhomogeneous piezoelectric material that was subjected to a line force, line charge and line dislocation at the center of the material. It was shown that the basic solution was identical in form to the basic solution for homogeneous piezoelectric materials.

M.Y.Chung, T.C.T.Ting: Philosophical Magazine A, 1995, 71[6], 1335-43