Defect detection in concrete-covered pipe by using smart magnetostrictive patch transducer and demagnetizing factors

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Detail(s)

Original languageEnglish
Title of host publication2018 IEEE Far East NDT New Technology and Application Forum (FENDT 2018)
PublisherIEEE
Pages112-116
ISBN (Electronic)9781538662304, 9781538662298
ISBN (Print)9781538662311
Publication statusPublished - Jun 2018

Publication series

NameProceedings of IEEE Far East NDT New Technology and Application Forum (FENDT)
PublisherIEEE

Conference

Title2018 IEEE Far East NDT New Technology and Application Forum (FENDT 2018)
PlaceChina
CityXiamen
Period6 - 8 June 2018

Abstract

The crack in pipe riser covered by a wall is difficult to test because the concrete causes large attenuation and mode conversion. Both reasons make it difficult to analyze the signal. This work reports the design of an axially magnetized magnetostrictive patch transducer (MPT) for efficient transduction of longitudinal guided wave, which can be used to detect defects in concrete-covered pipe risers. First, the theoretical background about demagnetizing field was introduced. The influence of the demagnetizing factors on the transducer efficient was discussed. Second, there kinds of existed MPTs were compared with the proposed smart MPT. In the comparison experiments of defect detection in concreted-covered pipe risers, the developed smart MPT performed better than those three MPTs. Finally, the smart MPT was applied in a defect detection of concrete-covered pipe riser sample. The experimental results for the smart MPT showed that the smart MPT can potentially be applied in pipe's defect detection.

Research Area(s)

  • defect detection, pipe riser, concrete, axially magnetized MPT, demagnetizing

Citation Format(s)

Defect detection in concrete-covered pipe by using smart magnetostrictive patch transducer and demagnetizing factors. / TSE, Peter W.; FANG, Zhou.

2018 IEEE Far East NDT New Technology and Application Forum (FENDT 2018). IEEE, 2018. p. 112-116 8681976 (Proceedings of IEEE Far East NDT New Technology and Application Forum (FENDT)).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review