The study of P-SV wave propagation in the periodic piezoelectric layered material

The piezoelectric material is playing a more and more important role in the active control of the wave propagation, and is introduced into the one-dimensional phononic crystal for the actively wave control. In this paper, the P-SV wave propagation in the periodic piezoelectric layered material is studied, a model of the problem is established, and the wave propagation is simulated by the COMSOL multi-physics software. The relationship between the transmission coefficients and the incident angle under the different electrical boundary conditions are obtained numerically; meanwhile the results are compared to those obtained by the softness matrix method. And the analytical and numerical results agree quite well for the electric circuit open or closed piezoelectric material and the piezoelectricity ignored material. The influence of the electric boundary condition on the P-SV wave propagation in the periodic piezoelectric layered material is obtained, The acoustic field and electric field distribution are also obtained by the numerical simulation.