Modelling eddy current testing of ferromagnetic medium

Issue title: Selected Papers from the 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2011)

Article type: Research Article

Authors: Zorni, Chiara^a | Reboud, Christophe^{a; *} | Decitre, Jean-Marc^a | Santandréa, Laurent^b | Bihan, Yann Le^b | Ventre, Salvatore^{c; d} | Tamburrino, Antonello^{c; d; e} | Lambert, Marc^f

Affiliations: [a] CEA, LIST, Département Imagerie Simulation pour le Contrôle, Gif-sur-Yvette, France | [b] Laboratoire de Génie Électrique de Paris – UMR 8507 (CNRS – SUPELEC – Univ Paris-Sud – UPMC), Gif-sur-Yvette, France | [c] DAEIMI, Università degli Studi di Cassino, Cassino, Italy | [d] Association EURATOM/ENEA/CREATE, Fraseati, Italy | [e] ECE, Michigan State University, East-Lansing, MI, USA | [f] DRE, Laboratoire des Signaux et Systèmes UMR 8506 (CNRS – SUPELEC – Univ Paris-Sud), Gif-sur-Yvette, France

Correspondence: [*] Corresponding author: Christophe Reboud, CEA, LIST, Département Imagerie Simulation pour le Contrôle, F-91191 Gif-sur-Yvette, France. E-mail: [email protected]

Abstract: Three numerical approaches ((i) a semi-analytical model based on a volume integral method; (ii) an integral formulation solved in terms of a finite-element approximation; (iii) a finite-element solver using complementary magnetic and electrical formulations) modelling the response of a probe to the presence of a defect affecting a planar-stratified ferromagnetic material are presented and their results compared with one another and with experimental or numerical results of literature.

Keywords: Integral formulation, dyadic Green functions, finite element method, ferromagnetism, cracks, eddy current testing

DOI: 10.3233/JAE-2012-1467

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 39, no. 1-4, pp. 245-250, 2012