ERROR ESTIMATION OF FINITE-ELEMENT SOLUTION IN NONLINEAR MAGNETOSTATIC 2D PROBLEMS

This paper presents tin error estimator which enables to control the q uality of finite element solution in non-linear magnetostatic. This me thod, based on the works of P.Ladeveze in mechanics, consists in const ructing a complementary admissible field from the one calculated by th e finite element method. This method has been transposed in the cases of non-linear vector and scaler potential 2D formulations. The results given by the proposed estimator are compared to the one based on two finite element solutions on two examples.