Fully-Coupled Model for 3-D Induction and Strain of Galfenol With Geometry Effects and Applied Currents
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D Model
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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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2019 ◽
Vol 124
(2)
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pp. 507-529
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