Translator Disclaimer
17 April 2007 A generalized energy model for the behavior of single-crystal magneto-electric composites
Author Affiliations +
This paper explores a unified energy-based approach to model the non-linear behavior of both magnetostrictive and piezoelectric materials. While the energy-approach developed by Armstrong has been shown to capture the magnetostrictive behavior of materials such as Terfenol-D1 and Iron-Gallium2 along different crystallographic directions, extending this approach to piezoelectric materials presents a considerable challenge. Some piezo-electric materials such as PMN-PT and BaTiO3 may undergo phase changes under applied electric fields and stress in addition to polarization switching. A modeling approach is developed in this paper to capture these effects. Finally, it is shown that the constitutive behavior for the piezo-electric/magnetostrictive layers, coupled by a simple blocked-force approach, is likely to model the behavior of magneto-electric composites.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jayasimha Atulasimha, George Akhras, and Alison B. Flatau "A generalized energy model for the behavior of single-crystal magneto-electric composites", Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 65260V (17 April 2007);

Back to Top