Anisotropic Vector Hysteresis Modeling for Non-oriented Electrical Steel Sheets under Multiaxial Stress

A model for predicting the vector hysteresis properties of non-oriented steel sheets under multiaxial stress is proposed. Based on the magneto-elastic energy of single crystal and coordinate transformation from crystal to sample, the effective field contains anisotropy and magneto-mechanical characteristics are derived. By combining the effective field with the energy-based model, the sensibility of mechanical stress is accounted for both the reversible and irreversible magnetization aspects. Comparisons between measured and calculated results are performed to validate the model. The results show that the model can accurately predict the rotational magnetic properties under multiaxial stress.