Essential Measurements for Finite Element Simulations of Magnetostrictive Materials
Poutala, A., Kovanen, T., & Kettunen, L. (2018). Essential Measurements for Finite Element Simulations of Magnetostrictive Materials. IEEE Transactions on Magnetics, 54(1), Article 7200107. https://doi.org/10.1109/TMAG.2017.2766599
Julkaistu sarjassa
IEEE Transactions on MagneticsPäivämäärä
2018Tekijänoikeudet
© IEEE, 2018.
We discuss which magnetoelastic material properties are essential to measure in order to model magnetostrictive materials
in finite element simulations. We show knowing the magnetic constitutive relation is sufficient, if the elastic behavior without
magnetic field is known a priori. We neglect hysteresis, and our starting point is to express the effect of mechanical deformation
on the magnetic constitutive relation with a small strain tensor and magnetic flux density. It follows that the (energetic) state of a
magnetostrictive material is independent of its history. Then, a certain choice of history allows us to keep magnetism and elasticity
distinct. We demonstrate with open source software Elmer, how one can set up such magnetoelastic simulations. These simulations
rely on data obtained from magnetostrictive measurements. Finally, it is discussed how a measurement setup and the finite element
model should be combined in order to verify the approach with experiments.
Julkaisija
Institute of Electrical and Electronics Engineers for the Magnetics GroupISSN Hae Julkaisufoorumista
0018-9464Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/27410114
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