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Health Monitoring of Piping Weld With Guided Waves

[+] Author Affiliations
Younho Cho

Pusan National University, Pusan, South Korea

Chong Myoung Lee, Joseph L. Rose

Pennsylvania State University, State College, PA

Ikkeun Park

Seoul National University of Technology, Seoul, Korea

Paper No. PVP2004-2809, pp. 19-23; 5 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


In this study, a new technology based on the ultrasonic guided wave to inspect the weld part is presented. The characteristic of a guided wave to travel a long distance over a welded part provides an efficient inspection. This guided wave technique overcomes a tedious scanning procedure using a conventional bulk shear wave angle beam technique. A proper mode and frequency tuning process with knowledge of dispersion curves and wave structure profiles allows us to propose a promising alternative which makes it possible to alleviate such limitations encountered with the conventional technique. Some sample experimental data are also provided with a detailed guideline showing the utility of guided waves when using a proper mode selection for the weldment.

Copyright © 2004 by ASME
Topics: Waves , Pipes



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