Abstract
In this paper, the Green's function technique is used to develop a solution for an infinite, piezoelectric medium containing a piezoelectric, ellipsoidal inclusion. The coupled elastic and electric fields both inside the inclusion and on the boundary of the inclusion and matrix are obtained. These results are used to calculate the effective constants of piezoelectric composite materials. It is found that the coupled elastic and electric fields inside the inclusion stay uniform when the external elastic field and electric field are constant. As an example, the cylindrical inclusion is considered in detail and some formulae for calculating the effective constants of piezoelectric, unidirectional-fiber composites are obtained.
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