Stresses and voltage developed in a nonhomogeneous piezoelectric bar due to finite bending

Abstract

Stress fields and electrostatic voltage developed in a nonhomogeneous piczooelectric bar subjected to bending moments at its ends are determined. This two-dimensional electro-mechanical problem of composite bar involving Maxwell's electro-magnetic equations, the equations of elasticity and the constitutive equations of piezoelectric quartz has been tackled effectively by using Seth's theory of finite deformation. Numerical results show wide differences in the voltages and the stresses of nonhomogeneous and homogeneous bars.