Computational and experimental segregation of deformations due to magnetic forces and magnetostriction

This paper presents a novel experimental set up to measure the deformation in an iron sheet under the influence of electromagnetic field, and the results of Finite Element Analysis used for segregating the magnetic forces and magnetostriction induced mechanical deformation. The magnetic forces are calculated using the virtual work principle and the magnetostriction is modeled by means of an energy-based model. The 3D computations are performed in an open source finite element software Elmer. The experimental results and numerical simulations were analyzed and the deformation due to magnetic forces and magnetostriction were identified.