THE SOLUTION OF UNSTEADY COUPLED ELECTROMECHANICAL PROBLEMS FOR MULTILAYERED MEDIA

A rigorous formulation of the unsteady coupled electromechanical probl em of the interaction of a massive electrode with a multilayered piezo electric medium is given, and a general formulation of a method of sol ving it is proposed. As an example the problem for a massive strip ele ctrode, which interacts with a single-layer, double-layer and triple-l ayer piezoelectric medium with unsteady loading is considered. The eff ect of the electroelastic properties of different materials (classes 6 mm of the hexagonal system) on the displacement of the electrode and the potential is pointed out. (C) 1998 Elsevier Science Ltd. All right s reserved.