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Corrosion detection with ray-based and full-waveform guided wave tomography

  • Min Lin
  • , Caleb Wilkins
  • , Jing Rao
  • , Zheng Fan
  • , Yang Liu*
  • *Corresponding author for this work
  • University of Wyoming
  • Nanyang Technological University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Guided wave tomography is a very promising technique for evaluating remaining strength and durability of damaged structures. This paper evaluates the accuracy of three guided wave tomography algorithms, straight ray tomography, bent ray tomography, and full waveform inversion (FWI), to detect defects like corrosion in numerical simulations. The numerical simulations are conducted in a 1000 × 1000 × 10 mm aluminum plate with various defects. By comparing the numerical results of the three algorithms, it is demonstrated that guided wave tomography based on FWI has the highest resolution for thickness inversion. The presented study may provide a useful insight to choose appropriate guided wave tomography algorithms for nondestructive testing of plate-like structures.

Original languageEnglish
Title of host publicationNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIV
EditorsTzu-Yang Yu, H. Felix Wu, Peter J. Shull, Andrew L. Gyekenyesi
PublisherSPIE
ISBN (Electronic)9781510635371
DOIs
StatePublished - 2020
Externally publishedYes
EventNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIV 2020 - None, United States
Duration: 27 Apr 20208 May 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11380
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIV 2020
Country/TerritoryUnited States
CityNone
Period27/04/208/05/20

Keywords

  • Full waveform inversion (FWI)
  • Guided wave tomography
  • Nondestructive testing
  • Thickness inversion

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