Author(s)

B. Delibas, A. Arockia Rajan & W. Seemann

Abstract

Piezoceramics are nowadays very well known smart materials, which are commonly used in many engineering applications. Although they are so excellent in usage, they are limited in high performance applications. Loading of piezoceramic materials above a certain level leads to a nonlinear behavior. One reason for this behavior is the ferroelectric and ferroelastic domain switching. In this work, certain piezoelectric materials having tetragonal perovskite type microstructure characteristics are simulated using a micromechanical approach in which all calculations, both the linear constitutive model and the nonlinear switching model are done in each and every grain of the material. Uni-axial loading is applied in the simulations. Macr

Keywords