Numerical And Experimental Analysis Of Eddy Current Testing For A Tube With Cracks

H. Hashizume, S. Toda, Y. Yamada, K. Miya, K. Morimoto, Y. Araki, K. Satake, N. Shimizu

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


A new method to calculate impedance signal in Eddy Current Testing(ECT) for a tube with surface cracks is developed using the two dimensional T-method (current vector potential method). Three dimensional current flow around a surface crack is approximated by introducing quasi conductivity in the crack region. Further a final matrix relating the current vector potentials on the crack surface with neighboring potentials is obtained by decreasing the width of the crack to zero and then the elements in the crack region are not necessary any longer. The numerical results show good agreement with the experimental ones, which indicates the validity of the method proposed here and the possibility to design more efficient probe of the ECT using the code.

Original languageEnglish
Pages (from-to)1469-1472
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 1992 Mar


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