Modeling of Magnetic-Induced Deformation Using Computer Code Chaining and Source-Tensor Projection

Abstract

Source tensor projections are developed for the magneto-elastic coupled problems when magnetostriction induced force and magnetic force are considered. Comparisons with classical force density projection are first performed on a simple example. Then it is investigated on an application of a multi-layer transformer core with the consideration of material anisotropy and multi-layer inhomogeneity.

Magnetostrictive and magnetic effects in Fe-27%Co laminations

“…However, such structures are well known to emit vibrations and noise. 1 This phenomenon has two possible origins: usual magnetic forces and associated elastic deformations (that induces the socalled form effect 2 ), and magnetostriction strain strongly correlated to the crystallographic texture and orientation of the magnetic field with respect to RD. Magnetostriction in a crystalline material is a spontaneous change of material shape depending of the local magnetic state.…”