Higher order material spaces to represent non-linear material characteristics and source terms in FEM-computations

Author

Driesen, Johan ; Sande, Hans Vande ; Hameyer, Kay

Author_Institution

Katholieke Univ., Leuven, Heverlee, Belgium

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3336

Lastpage

3339

Abstract

A new approach to represent the local change of material properties or source terms due to their nonlinear characteristics is presented here. The material function is given in terms of simple basis functions, allowing a higher order representation within the area covered by the finite element. This approximation as a higher order material space has advantages for the treatment of saturable ferromagnetic materials and temperature dependencies of conductive and permanent magnetic materials. It is possible to treat the material function space and the field solution as a coupled problem

Keywords

conducting materials; ferromagnetic materials; finite element analysis; permanent magnets; basis functions; conductive material; finite element model; higher order material space; material properties; nonlinear characteristics; permanent magnetic material; saturable ferromagnetic material; source terms; temperature dependence; Conducting materials; Electromagnetic coupling; Finite element methods; Integral equations; Iron; Magnetic materials; Nonlinear equations; Partial differential equations; Polynomials; Temperature dependence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952608

Filename

952608