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Proceedings Paper

Energy-based model for the magnetostrictive behavior of polycrystalline iron-gallium alloys
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Paper Abstract

This paper attempts to model the actuation and sensing behavior of polycrystalline magnetostrictive samples by treating them as composed of multiple grains of single-crystals, each with a different orientation to the loading axis. The texture analysis of a typical cross-section of the sample will be used to estimate the fraction of grains that are close to <100>, <110> and <111> orientation. A simple model based on the law of mixtures will be proposed to represent the behavior of the polycrystal in terms of the behavior of <100>, <110> and <111> oriented single crystals. However, the magnetomechanical behavior along each of the crystallographic directions will be simulated using an energy based model as discussed in Ref. 5 and Ref. 9

Paper Details

Date Published: 6 April 2006
PDF: 9 pages
Proc. SPIE 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 61700M (6 April 2006); doi: 10.1117/12.658716
Show Author Affiliations
Jayasimha Atulasimha, Univ. of Maryland, College Park (United States)
Alison B. Flatau, Univ. of Maryland, College Park (United States)

Published in SPIE Proceedings Vol. 6170:
Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics
William D. Armstrong, Editor(s)

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