LINE-FORCE, CHARGE, AND DISLOCATION IN ANISOTROPIC PIEZOELECTRIC COMPOSITE WEDGES AND SPACES

Two-dimensional problems of anisotropic piezoelectric composite wedges and spaces are studied. The Stroh formalism is employed to obtain the basic real-form solution in terms of two arbitrary constant vectors f or a particular wedge. Explicit real-form solutions are then obtained for (i) a composite wedge subjected to a line force and a line charge at the apex of the wedge and (ii) a composite space subjected to a lin e force, line charge, line dislocation, and an electric dipole at the center of the composite space. For the composite wedge the surface tra ction on any radial plane theta = constant and the electric displaceme nt D-theta normal to the radial plane theta = constant vanish euerywhe re. For the composite space these quantities may not vanish but they a re invariant with the choice of the radial plane.