Macroscopic model of magnetostriction based on energy minimization

This paper introduces a model of magnetostriction based on minimization of total energy. An identification of each term from measurements of the magnetization and magnetostriction is presented, assumptions supporting the model are mentioned. To validate the proposed model, a comparison between experiments — on FeSi single sheet — and the calculation method including the model is described in detail. Finally, the model is integrated in a finite elements simulation, the results from the computations are verified with measurements on an in-house test bench.