Evaluation of corrosion in carbon steel pipes by laser-generated guided wave

Do Youn Kim, Joon Hyun Lee, Younho Cho, Jaesun Lee, Jan D. Achenbach

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The objective of this research is to locate and evaluate wall thinning in pipe elbow by a non-contact guided wave technique with laser source as a transmitter and air-bone transducer as a receiver, respectively. Wall thinning of carbon steel pipe is one of the most serious problems in nuclear industry; especially the one in carbon steel pipe elbow caused by FAC (Flow-Accelerated Corrosion). Therefore, development of a robust NDE technique for the pipe elbows is essential for safe operation of nuclear power plants. Specimens used in this study were carbon steel which is widely used in real nuclear power plants. The geometry of wall thinning was given as 120mm extent, 80mm-length and 5mm-depth. The L(0,1) and L(0,2) dominant modes group shows a promising variation in the ultrasound guided wave data analysis based on the response obtained by the laser generation/air-coupled detection system. The trends of these characteristics and subsequent signal processing were used to estimate the size and location of wall thinning.

Original languageEnglish (US)
Title of host publicationIUTAM Symposium on Recent Advances of Acoustic Waves in Solids - Proceedings of the IUTAM Symposium on Recent Advances of Acoustic Waves in Solids
EditorsTsung-Tsong Wu, Chien-Ching Ma
PublisherSpringer Verlag
Pages87-94
Number of pages8
ISBN (Print)9789048198924
DOIs
StatePublished - Jan 1 2010
EventIUTAM Symposium on Recent Advances of Acoustic Waves in Solids, 2009 - Taipei, Taiwan, Province of China
Duration: May 25 2009May 28 2009

Publication series

NameIUTAM Bookseries
Volume26
ISSN (Print)1875-3507

Other

OtherIUTAM Symposium on Recent Advances of Acoustic Waves in Solids, 2009
CountryTaiwan, Province of China
CityTaipei
Period5/25/095/28/09

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Automotive Engineering
  • Aerospace Engineering
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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