Abstract
A new magneto-elastoplastic coupling model for ferromagnetic materials is proposed using the equivalent field method. In the proposed model, the components of the equivalent field due to the applied magnetic field, applied stress, and plastic deformation are considered based on the energy theory. Through detailed comparison with the existing models, the proposed model in this paper can more accurately describe the basic nonlinear change of magnetostrictive strain and magnetization under the applied stress and magnetic field revealed by existing experiments. In addition, the effects of applied stress, magnetic field and plastic deformation on the magnetostriction and magnetization of ferromagnetic materials are analyzed based on the proposed theory. In conclusion, the proposed model can more accurately describe the effect of stress on the magentostrictive strain and magnetization, the effects of the applied stress and magnetic field on the magnetic permeability, and the effect of plastic deformation on magnetomechanical characteristics.
Published Version
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