Model for Stress-Dependent Hysteresis in Electrical Steel Sheets Including Orthotropic Anisotropy

An energy-based approach for anisotropic modeling of stress-dependent magnetization curves in electrical steel sheets is presented. The model is based on an orthotropic extension of an existing isotropic thermodynamic model and coupling to the Jiles-Atherton model of hysteresis. The model fits well to experimental results under uniaxial excitation, and it is numerically tested under rotational fields.