Reconstruction of multiple cracks in an ECT round-robin test

Mihai Rebican; Noritaka Yusa; Zhenmao Chen; Kenzo Miya; Tetsuya Uchimoto; Toshiyuki Takagi

doi:10.3233/jae-2004-598

Reconstruction of multiple cracks in an ECT round-robin test

Mihai Rebican, Noritaka Yusa, Zhenmao Chen, Kenzo Miya, Tetsuya Uchimoto, Toshiyuki Takagi

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

20 Citations (Scopus)

Abstract

This paper proposes an algorithm for multiple cracks reconstruction from ECT signals by means of a simulated annealing parallelized on a supercomputer. The algorithm takes not only the profiles of cracks but also the number of cracks as unknown, which is a very important feature from the practical point of view. A fast forward code using a database is upgraded for the rapid computation of the ECT signals of a differential mutual induction probe due to multiple cracks. The algorithm is applied to the reconstruction of the multiple cracks of a JSAEM round-robin test geometry. The reconstruction result using a simulated signal proves the validity of the proposed approach.

Original language	English
Pages (from-to)	399-404
Number of pages	6
Journal	International Journal of Applied Electromagnetics and Mechanics
Volume	19
Issue number	1-4
DOIs	https://doi.org/10.3233/jae-2004-598
Publication status	Published - 2004

Keywords

Eddy current testing
Multiple cracks
Parallel computing
Reconstruction
Simulated annealing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.3233/jae-2004-598

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AU - Rebican, Mihai

AU - Yusa, Noritaka

AU - Chen, Zhenmao

AU - Miya, Kenzo

AU - Uchimoto, Tetsuya

AU - Takagi, Toshiyuki

PY - 2004

Y1 - 2004

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AB - This paper proposes an algorithm for multiple cracks reconstruction from ECT signals by means of a simulated annealing parallelized on a supercomputer. The algorithm takes not only the profiles of cracks but also the number of cracks as unknown, which is a very important feature from the practical point of view. A fast forward code using a database is upgraded for the rapid computation of the ECT signals of a differential mutual induction probe due to multiple cracks. The algorithm is applied to the reconstruction of the multiple cracks of a JSAEM round-robin test geometry. The reconstruction result using a simulated signal proves the validity of the proposed approach.

KW - Eddy current testing

KW - Multiple cracks

KW - Parallel computing

KW - Reconstruction

KW - Simulated annealing

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Reconstruction of multiple cracks in an ECT round-robin test

Abstract

Keywords

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