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Gotoh, Yuji Chugoku Polytechnic College
Takahashi, Norio Okayama University
The alternating magnetic flux leakage testing is used for the detection of cracks in a steel plate. A new technique of how to detect plural cracks, which are located at a very short distance from each other, using the parallel (x-) component of the leakage flux density is proposed. The behavior of leakage flux is examined using a three-dimensional edge-based hexahedral finite-element method. The effects of dimensions of search coils and cracks on the detection accuracy are illustrated.
eddy current testing
finite element analysis
Digital Object Identifier: 10.1109/TMAG.2003.810219
Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics, IEEE Transactions on, May 2003, Volume 39, Issue 3, Part 1, Pages 1527-1530.
Copyright © 2006 IEEE. All rights reserved.