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Proceedings Paper

Magneto-mechanical model of sensor-actuator in bending mode
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Paper Abstract

A model has been developed to predict the magnetic induction, elastic and magnetostrictive strain and mechanical stress in a laminated structure with ferromagnetic and non-magnetic layers and subjected simultaneously to mechanical stress and magnetic field. This model was obtained by coupling classical laminated plate theory to an energy-based statistical magneto-mechanical model. The model can accommodate in-plane axial and shear forces as well as bending and twisting moments and can predict both in-plane axial and shear strains and stresses. A stress-dependent Young's modulus combined with an iterative algorithm was used to obtain non-linear magneto-mechanical response from a unimorph actuator and sensor. The effect of tensile and compressive bias force on actuator performance and the effect of DC magnetic bias field on sensor performance were studied. Possible applications areas for the model have been proposed.

Paper Details

Date Published: 20 April 2007
PDF: 11 pages
Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 65262K (20 April 2007); doi: 10.1117/12.715693
Show Author Affiliations
Supratik Datta, Univ. of Maryland, College Park (United States)
Alison B. Flatau, Univ. of Maryland, College Park (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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