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

doi:10.1109/20.123973

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

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1469-1472
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	28
Issue number	2
DOIs	https://doi.org/10.1109/20.123973
Publication status	Published - 1992 Mar

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abstract = "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.",

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T1 - Numerical And Experimental Analysis Of Eddy Current Testing For A Tube With Cracks

AU - Hashizume, H.

AU - Toda, S.

AU - Yamada, Y.

AU - Miya, K.

AU - Morimoto, K.

AU - Araki, Y.

AU - Satake, K.

AU - Shimizu, N.

PY - 1992/3

Y1 - 1992/3

N2 - 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.

AB - 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.

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

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