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Proceedings Paper

Bill Armstrong memorial symposium: free energy model for magnetization and magnetostriction in stressed Galfenol alloys
Author(s): Phillip G. Evans; Marcelo J. Dapino; James B. Restorff
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Paper Abstract

We present a thermodynamic framework to quantify the magnetization and magnetostriction of Galfenol alloys in response to magnetic fields, mechanical stress, and/or stress-annealing. The framework utilizes only physical parameters and thus provides useful information for material characterization. Furthermore, we formulate the model in state-space form, thus facilitating the computational implementation for design and control of dynamic Galfenol devices.

Paper Details

Date Published: 19 April 2007
PDF: 11 pages
Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 652619 (19 April 2007); doi: 10.1117/12.720872
Show Author Affiliations
Phillip G. Evans, The Ohio State Univ. (United States)
Marcelo J. Dapino, The Ohio State Univ. (United States)
James B. Restorff, Naval Surface Warfare Ctr. (United States)


Published in SPIE Proceedings Vol. 6526:
Behavior and Mechanics of Multifunctional and Composite Materials 2007
Marcelo J. Dapino, Editor(s)

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