Electro-elastic fundamental solutions of anisotropic piezoelectric materials with an elliptical hole

Abstract

ABSTRACT:By using Stroh' complex formalism and Cauchy's integral method, the electro-elastic fundamental solutions of an infinite anisotropic piezoelectric solid containing an elliptic hole or a crack subjected to a line force and a line charge are presented in closed form. Particular attention is paid to analyzing the characteristics of the stress and electric displacement intensity factors. When a line force-charge acts on the crack surface, the real form expression of intensity factors is obtained. It is shown through a special example that the present work is correct.

The Critical Conditions of Ferroelectric Domain Switch with Different Porosity and Pressure

“…The shape of the core is rotated ellipsoid, with radius a and aspect ratio r . Then under the influence of the reversed external electric field E or equivalent electric field, the number of switched domain cores n can be calculated by Merz's experiment results [4] .…”