Multiscale approaches for magneto-elasticity in device simulation

•Simplified multiscale modelling of the ferromagnetic magneto-elastic behaviour.•Texture effects in simplified multiscale magneto-elastic behaviour models.•Magnetostriction hysteresis under stress using multiscale-Jiles-Atherton approaches.•Practical implementation of multiscale behaviour models in...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 487; p. 165241
Main Authors Bernard, Laurent, Mailhé, Benjamin Joseph, Sadowski, Nelson, Batistela, Nelson Jhoe, Daniel, Laurent
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.10.2019
Elsevier BV
Elsevier
Subjects
Anisotropy
Computer simulation
Couplings
Device simulation
Elasticity
Engineering Sciences
Ferromagnetic materials
Finite element method
Magnetic field analysis
Magnetism
Magneto-elastic behaviour
Magnetostriction
Multiscale analysis
Multiscale modelling
Nonlinear programming
Texture
Magnetic field analysis
Magneto-elastic behaviour
Multiscale modelling
Device simulation
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Summary:•Simplified multiscale modelling of the ferromagnetic magneto-elastic behaviour.•Texture effects in simplified multiscale magneto-elastic behaviour models.•Magnetostriction hysteresis under stress using multiscale-Jiles-Atherton approaches.•Practical implementation of multiscale behaviour models in the finite element method. Magnetoelastic couplings in ferromagnetic materials can be modelled using multiscale approaches. Various degrees of sophistication are accessible depending on the foreseen material and application. Here, we present a set of models, built on this approach, which can be used for devices magnetic field analysis. The representation of combined crystal anisotropy and texture effects is analysed through the introduction of a simplified fiber texture. A method is also proposed for the computation of magnetostriction hysteresis together with magnetization by association with a Jiles-Atherton model. All the models are detailed with their main physical and numerical characteristics, and the whole set of features that are needed for their use in device simulation tools. A test structure is finally simulated using the finite element method in order to illustrate the possibilities offered by these multiscale approaches.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2019.04.093