Inverse Preisach model in finite elements modelling

In a finite element code using magnetic vector potential as unknown, the fi xed point method needs the relationship which gives the magnetic field H fr om the magnetic Aux density B. In this paper, we present two methods to obt ain the magnetic behaviour H(B) of a ferromagnetic material. The first uses centred cycles to calculate directly the inverse Preisach model. The secon d uses the Regula-Falsi method and the classical direct Preisach model (whe re B, H, and M are collinear). We conclude giving some elements of comparis on.