Study and experimental validation of the calculation of the ECT signal induced by a minute crack using a FEM–BIM combination |
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| Authors: | Yann Jzsef Claude |
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| Affiliation: | aLaboratoire de Génie Electrique de Paris—UMR 8507 CNRS—Supélec—Université Paris Sud—Université Pierre et Marie Curie, Plateau de Moulon, 91192 Gif-sur-Yvette Cedex, France;bDepartment of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics, H-1521 Budapest, Egry J. u. 18., Hungary |
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| Abstract: | A combination of the boundary integral (BIM) and finite element (FEM) methods is presented for the calculation of the signal induced by small cracks. This approach—by preserving the attractive properties of both methods—allows considering a large variety of probe structures while the computation time remains low, especially if the signal of a complete scan is calculated. To validate the calculation results, experiments are carried out using a large number of minute cracks. The good agreement obtained between the measured and calculated data shows the applicability of the presented method. |
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| Keywords: | Boundary integral method Cracks Eddy currents Finite element method Modelling |
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