Description: The magnetic behavior of some electromagnetic media is characterized by a magnetic permeability that strongly depends upon the strength of the magnetic field. Such nonlinear response is typically described through one (for isotropic behavior) or three (for orthotropic behavior) B–H curves that define, in tabular form, the strength of the magnetic flux density as a function of the strength of the magnetic field. The model provided in Abaqus is suitable for modeling soft magnetic materials that show little or no hysteresis.