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Characteristic Analysis of Eddy Current Testing According to the finite Element formulations  

Lee, Hyang-Beom (Department of Electrical Engineering, Soongsil University)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.25, no.5, 2005 , pp. 384-390 More about this Journal
Abstract
In the numerical analysis of En (eddy current testing) using 3-dimensional FEM (finite element method), MVP (magnetic vector potential) and electric scalar potential are used as variables in conductor region. Three dimensional modeling makes number of unknowns increase, and the degree of freedom of variables also makes number of unknowns increase. Because of this reason, modified UP is used to reduce the number of unknowns. Gauge condition is enforced artificially on existing FEM formulations to insure the uniqueness of MVP. So in this paper the effects of these FEM formulation procedures on ECT are investigated and the appropriate FEM formulation is suggested for accurate ECT simulation.
Keywords
ECT; FEM; FE formulation; gauge condition; modified magnetic vector potential;
Citations & Related Records
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