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Proceedings Paper

Micromechanical model for ferroelectric and ferroelastic single crystals
Author(s): Mourad Elhadrouz; Tarak Ben Zineb; Etienne Patoor
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Paper Abstract

This paper examines the switching process occuring in ferroelectric and ferroelastic single crystals under electro-mechanical loadings. Ferroelectrics undergoing a cubic to tetragonal phase transition are considered. The single crystal energy has three origins: elastic, electric and the incompatibilities of the spontaneous strain and electric displacement fieds between domains. The stress and electric fields fluctuate and present jumps at the domain walls. As a consequence, they induce electro-elastic interaction energy. Thus, it involves dissipation that the present work aims to capture through a micromechanical approach.

Paper Details

Date Published: 21 July 2004
PDF: 8 pages
Proc. SPIE 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics, (21 July 2004); doi: 10.1117/12.539133
Show Author Affiliations
Mourad Elhadrouz, Lab. LPMM/CNRS, ENSAM CER de Metz (France)
Tarak Ben Zineb, Lab. LPMM/CNRS, ENSAM CER de Metz (France)
Etienne Patoor, Lab. LPMM/CNRS, ENSAM CER de Metz (France)


Published in SPIE Proceedings Vol. 5387:
Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics
Dimitris C. Lagoudas, Editor(s)

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