A fully-coupled and 3-D model for induction and strain of cubic magnetostrictive materials is presented which incorporates geometry dependent demagnetizing fields, current induced fields, and stress dependent permeability. Maxwell’s equations are coupled with a nonlinear constitutive model derived through thermodynamics. Discretization of the nonlinear problem with a known reference configuration yields a piecewise linear model ideal for transducer design.
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Fully-Coupled Model for 3-D Induction and Strain of Galfenol With Geometry Effects and Applied Currents
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Evans, P, & Dapino, M. "Fully-Coupled Model for 3-D Induction and Strain of Galfenol With Geometry Effects and Applied Currents." Proceedings of the ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1. Ellicott City, Maryland, USA. October 28–30, 2008. pp. 181-187. ASME. https://doi.org/10.1115/SMASIS2008-328
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