Eur. Phys. J. AP 12, 117-121 (2000)
https://doi.org/10.1051/epjap:2000178

Inverse Preisach model in finite elements modelling^*

LGEP, Supelec (UMR 8507 CNRS), Universités Paris XI et VI, Plateau du Moulon, 91192 Gif/Yvette Cedex, France

Corresponding author: bouillault@lgep.supelec.fr

Received: 11 May 2000
Revised: 24 July 2000
Accepted: 29 August 2000
Published online: 15 November 2000

Abstract

In a finite element code using magnetic vector potential as unknown, the fixed point method needs the relationship which gives the magnetic field H from the magnetic flux density B. In this paper, we present two methods to obtain the magnetic behaviour H(B) of a ferromagnetic material. The first uses centred cycles to calculate directly the inverse Preisach model. The second uses the Regula-Falsi method and the classical direct Preisach model (where B, H, and M are collinear). We conclude giving some elements of comparison.