FEM analysis and testing of magnetostrictive effects in electrical samples for machinery applications

This paper investigates the numerical results relating to magnetostrictive effects in an electrical steel sample. This is based upon the magneto-mechanical coupling. The magnetic field causes elastic deformation and mechanical stress changes the magnetization curve and the hysteresis loop. As the applied stress is increased, material permeability increases. Pre-stressed magnetic material may show the promise of increased power density in the manufacturing of electric machinery.