Steady-state vibrations for the state of generalized plane strain in a linear piezoelectric medium

In this paper, steady-state vibrations are studied for the state of generalized plane strain in a linear piezoelectric medium. The fundamental boundary value problems are stated for vibrations in a prismatic piezoelectric body with arbitrary cross-section composed of material with the more general, tetragonal 4¯, symmetry . Along with general theory, we present some other useful results concerning the behavior of the matrix of fundamental solutions. The conditions for the critical values of the field quantities on the boundary are derived.