Evaluation of fatigue cracks by an angle beam EMAT-ET dual probe

Tetsuya Uchimoto; Toshiyuki Takagi; Toshiaki Ichihara; Gerd Dobmann

doi:10.1016/j.ndteint.2015.01.001

Evaluation of fatigue cracks by an angle beam EMAT-ET dual probe

Tetsuya Uchimoto, Toshiyuki Takagi, Toshiaki Ichihara, Gerd Dobmann

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

19 Citations (Scopus)

Abstract

In this study, the authors propose an EMAT-ET dual probe for evaluation of fatigue cracks. The probe consists of a permanent magnet, a meander-line coil to emit and receive shear-vertical waves propagating obliquely in the material to be inspected, and a racetrack-shaped coil to pick up the ET signals. The experimental results show that the EMAT and ET modes of the proposed probe can detect and size both, shallow and deep cracks on the back side of specimens, respectively, which indicates that the proposed probe provides reliable evaluation of fatigue cracks within a wide range of depth values.

Original language	English
Pages (from-to)	10-16
Number of pages	7
Journal	NDT and E International
Volume	72
DOIs	https://doi.org/10.1016/j.ndteint.2015.01.001
Publication status	Published - 2015 Jun

Keywords

Dual probe
Eddy current testing
Electromagnetic acoustic transducer
Fatigue cracks
Ultrasonic testing

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1016/j.ndteint.2015.01.001

Cite this

@article{d281b953353545c1ba8e438bf417c637,

title = "Evaluation of fatigue cracks by an angle beam EMAT-ET dual probe",

abstract = "In this study, the authors propose an EMAT-ET dual probe for evaluation of fatigue cracks. The probe consists of a permanent magnet, a meander-line coil to emit and receive shear-vertical waves propagating obliquely in the material to be inspected, and a racetrack-shaped coil to pick up the ET signals. The experimental results show that the EMAT and ET modes of the proposed probe can detect and size both, shallow and deep cracks on the back side of specimens, respectively, which indicates that the proposed probe provides reliable evaluation of fatigue cracks within a wide range of depth values.",

keywords = "Dual probe, Eddy current testing, Electromagnetic acoustic transducer, Fatigue cracks, Ultrasonic testing",

author = "Tetsuya Uchimoto and Toshiyuki Takagi and Toshiaki Ichihara and Gerd Dobmann",

note = "Funding Information: This work was partially supported by the JSPS Core-to-Core Program , A. Advanced Research Networks , CNRS LIA , Engineering and Science Lyon–Tohoku Laboratory , ELyT Laboratory , and the JSPS Young Researcher Overseas Visits Program for Vitalizing Brain Circulation . The authors are grateful to Gerhard H{\"u}bschen of IZFP, Germany for his fruitful suggestions. Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd. All rights reserved.",

year = "2015",

month = jun,

doi = "10.1016/j.ndteint.2015.01.001",

language = "English",

volume = "72",

pages = "10--16",

journal = "NDT International",

issn = "0963-8695",

publisher = "Elsevier Limited",

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T1 - Evaluation of fatigue cracks by an angle beam EMAT-ET dual probe

AU - Uchimoto, Tetsuya

AU - Takagi, Toshiyuki

AU - Ichihara, Toshiaki

AU - Dobmann, Gerd

N1 - Funding Information: This work was partially supported by the JSPS Core-to-Core Program , A. Advanced Research Networks , CNRS LIA , Engineering and Science Lyon–Tohoku Laboratory , ELyT Laboratory , and the JSPS Young Researcher Overseas Visits Program for Vitalizing Brain Circulation . The authors are grateful to Gerhard Hübschen of IZFP, Germany for his fruitful suggestions. Publisher Copyright: © 2015 Elsevier Ltd. All rights reserved.

PY - 2015/6

Y1 - 2015/6

N2 - In this study, the authors propose an EMAT-ET dual probe for evaluation of fatigue cracks. The probe consists of a permanent magnet, a meander-line coil to emit and receive shear-vertical waves propagating obliquely in the material to be inspected, and a racetrack-shaped coil to pick up the ET signals. The experimental results show that the EMAT and ET modes of the proposed probe can detect and size both, shallow and deep cracks on the back side of specimens, respectively, which indicates that the proposed probe provides reliable evaluation of fatigue cracks within a wide range of depth values.

AB - In this study, the authors propose an EMAT-ET dual probe for evaluation of fatigue cracks. The probe consists of a permanent magnet, a meander-line coil to emit and receive shear-vertical waves propagating obliquely in the material to be inspected, and a racetrack-shaped coil to pick up the ET signals. The experimental results show that the EMAT and ET modes of the proposed probe can detect and size both, shallow and deep cracks on the back side of specimens, respectively, which indicates that the proposed probe provides reliable evaluation of fatigue cracks within a wide range of depth values.

KW - Dual probe

KW - Eddy current testing

KW - Electromagnetic acoustic transducer

KW - Fatigue cracks

KW - Ultrasonic testing

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DO - 10.1016/j.ndteint.2015.01.001

M3 - Article

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SN - 0963-8695

VL - 72

SP - 10

EP - 16

JO - NDT International

JF - NDT International

ER -

Evaluation of fatigue cracks by an angle beam EMAT-ET dual probe

Abstract

Keywords

ASJC Scopus subject areas

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