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Gotoh, Yuji Chugoku Polytechnic College
Takahashi, Norio Okayama University
The alternating magnetic flux leakage testing has been applied in the nondestructive inspection process for detecting cracks on the surface of steel. This paper describes numerical analysis using three-dimensional (3-D) edge-based hexahedral finite element method for this testing. The necessity of nonlinear analysis is clarified in comparison with the linear analysis (jω method). The characteristic of leakage flux is confirmed by verification experiment. The possibility of distinguishing two cracks is examined by calculating the detailed distribution of leakage flux around cracks
eddy current testing
finite element analysis
Digital Object Identifier 10.1109/20.996309
Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics, IEEE Transactions on, March 2002, Volume 38, Issue 2, Part 1, Pages 1209-1212.
Copyright © 2002 IEEE. All rights reserved.