Numerical analysis of magnetostrictive effects in an electrical steel sample including experimental testing

Abstract

This paper investigates experimental testing as well as numerical results relating to inverse magnetostrictive effects in an electrical steel sample. The numerical analysis is based upon the 3d magnetoelastic formulation. The magnetic field causes elastic deformation and mechanical stress changes the magnetic properties. It is found that an increase in the mechanical stress causes the material to contain more flux density. This result has the promise of increased power density inside the electrical device on stressing the material. Also the numerical results enable us to determine the field variables at any point inside and outside the sample.