Hidden disbond detection in spent nuclear fuel storage systems using air-coupled ultrasonics

Homin Song, John S. Popovics

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

Abstract

This paper studies an air-coupled ultrasonic scanning approach for damage assessment in steel-clad concrete structures. An air-coupled ultrasonic sender generates guided plate waves in the steel cladding and a small contact-Type receiver measures the corresponding wave responses. A frequency-wavenumber (f-k) domain signal filtering technique is used to isolate the behavior of the fundamental symmetric (S0) mode of the guided plate waves. The behavior of the S0 mode is sensitive to interface bonding conditions. The proposed inspection approach is verified by a series of experiments performed on laboratory-scale specimens. The experimental results demonstrate that hidden disbond between steel cladding and underlying concrete substrate can be successfully detected with the ultrasonic test setup and the f-k domain signal filtering technique.

Original languageEnglish (US)
Title of host publicationSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016
EditorsJerome P. Lynch
PublisherSPIE
ISBN (Electronic)9781510600447
DOIs
StatePublished - Jan 1 2016
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016 - Las Vegas, United States
Duration: Mar 21 2016Mar 24 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9803
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016
CountryUnited States
CityLas Vegas
Period3/21/163/24/16

Keywords

  • Air-coupled ultrasonics
  • Frequency-wavenumber (fk) domain signal filtering
  • Spent nuclear fuel storage systems
  • Steel-clad concrete

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Song, H., & Popovics, J. S. (2016). Hidden disbond detection in spent nuclear fuel storage systems using air-coupled ultrasonics. In J. P. Lynch (Ed.), Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016 [980331] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9803). SPIE. https://doi.org/10.1117/12.2219482