Influence of cavity boundary conditions on the effective electroelastic moduli of piezoelectric ceramic with cavities

摘要

An account is given on the results of an investigation focusing on the influence of the electric fields within the cavities to the effective electroelastic properties in a piezoelectric material with cavities. The results show that the electric field in the cavity only causes the change of the overall dielectric constants and does not affect the effective elastic and piezoelectric constants of the material.