Eur. Phys. J. AP 13, 115-119 (2001)
https://doi.org/10.1051/epjap:2001120

Strong magnetomechanical FE coupling using local magnetostriction forces^*

¹ Katholieke Universiteit Leuven, Dept. Electrical Engineering, Div. Electric Energy (ESAT-ELEN), Kasteelpark Arenberg 10, 3001 Leuven, Belgium
² Katholieke Universiteit Leuven, Dept. Mechanics, Division PMA, Celestijnenlaan 300B, 3001 Leuven, Belgium

Corresponding author: kay.hameyer@esat.kuleuven.ac.be

Received: 11 May 2000
Accepted: 20 October 2000
Published online: 15 February 2001

Abstract

The magnetic material's deformation caused by magnetostriction is represented by an equivalent set of mechanical forces, giving the same deformation to the material as magnetostriction does. This is done in a way similar to how thermal stresses are usually incorporated into stress analysis. The resulting magnetostriction force distribution can be superposed onto other force distributions, like the magnetic force distribution. These two force distributions are the key ingredients of a numerically strong coupling of the magnetic and the mechanical finite element systems.