Study of the non-linear eddy-current response in a ferromagnetic plate: Theoretical analysis for the 2D case. (January 2018)

• Record Type: Journal Article
• Authors: Skarlatos, Anastassios; Theodoulidis, Theodoros
• Is Part Of: NDT & E international. Volume 93(2018)
• Page Start: 150
• Page End: 156
• Publication Date: 2018-01
• Subjects: Electromagnetics -- Non-linear modelling -- Modal methods -- Ferromagnetic materials; Nondestructive testing -- Periodicals; Contrôle non destructif -- Périodiques; Electronic journals; 620.1127
• DOI: 10.1016/j.ndteint.2017.09.003
• Languages: English
• ISSNs: 0963-8695

Abstract

Abstract: The non-linear induction problem in an infinite ferromagnetic pate is studied theoretically by means of the truncated region eigenfunction expansion (TREE) for the 2D case. The non-linear formulation is linearised using a fixed-point iterative scheme, and the solution of the resulting linear problem is constructed in the Fourier domain following the TREE formalism. The calculation is carried out for the steady-state response under harmonic excitation and the harmonic distortion is derived from the obtained spectrum. This article is meant to be the theoretical part of a study, which will be complemented by the corresponding experimental work in a future communication.