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New Crack Detection Method by Using Electromagnetic Wave

[+] Author Affiliations
Hidetoshi Hashizume, Takuya Shibata, Kazuhisa Yuki, Takahiro Yoshioka

Tohoku University, Sendai, Miyagi, Japan

Paper No. PVP2004-2841, pp. 229-234; 6 pages
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Recent Advances in Nondestructive Evaluation Techniques for Material Science and Industries
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4679-2
  • Copyright © 2004 by ASME


The NDT method using electromagnetic waves has the possibility to detect widely and quickly inner surface crack existing in large pipes. The purpose of this study is then to demonstrate validity of the method to detect the thin crack introduced by plasma discharge fabrication. Through this study, it has been shown that both reflected and transmitted waves carry a lot of information on existence of the crack. Experimental results indicate that there exists attractive possibility in this new NDT method.

Copyright © 2004 by ASME



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