Integral solution of nonlinear magnetostatic field problems

This paper presents a procedure for using integrals to solve nonlinear magn etostatic field problems. An integral equation on magnetized volume, expres sed in terms of magnetic field H or magnetization M, is discretized by mean s of edge elements on a tetrahedral mesh and solved numerically by means of a collocation method. The procedure approaches nonlinear by means of the f ixed-point iterative technique. It sets up two different iterative schemes with complementary features. This paper gives details about implementation and presents and discusses results on some test cases.