Micromechanical model for ferroelectric and ferroelastic single crystals

Mourad Elhadrouz; Tarak Ben Zineb; Etienne Patoor

doi:10.1117/12.539133

21 July 2004 Micromechanical model for ferroelectric and ferroelastic single crystals

Mourad Elhadrouz, Tarak Ben Zineb, Etienne Patoor

Proceedings Volume 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics; (2004) https://doi.org/10.1117/12.539133
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

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.

Citation Download Citation

Mourad Elhadrouz, Tarak Ben Zineb, and Etienne Patoor "Micromechanical model for ferroelectric and ferroelastic single crystals", Proc. SPIE 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics, (21 July 2004); https://doi.org/10.1117/12.539133

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