Performance of EMATs for robotic inspection of cracks in welded stainless steel canisters

Hwanjeong Cho, Sungho Choi, Cliff J. Lissenden

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

Abstract

The capability of electromagnetic acoustic transducers (EMATs) to detect cracks in stainless steel canisters is described within the context of robot-delivered nondestructive inspection (NDI) of dry storage casks for spent nuclear fuel. NDI of the canister must be performed remotely because of the limited access to the canister, which is enclosed by a concrete and steel overpack structure. Moreover, the environment inside the cask has both elevated temperature and gamma radiation. A potential canister degradation mode that could lead to issues with managing the spent fuel is chloride-induced stress corrosion cracking in the heat affected zone of full-penetration welds. Because access to the outer surface of the canister is limited by guide channels inside the overpack, ultrasonic guided waves are a natural choice for NDI. Shear horizontal (SH) waves sent and received from EMATs aboard a robot are shown to detect flaws in multiple canister mockups.

Original languageEnglish (US)
Title of host publication45th Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 38
EditorsSimon Laflamme, Stephen Holland, Leonard J. Bond
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735418325
DOIs
StatePublished - May 8 2019
Event45th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2018 - Burlington, United States
Duration: Jul 15 2018Jul 19 2018

Publication series

NameAIP Conference Proceedings
Volume2102
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference45th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2018
CountryUnited States
CityBurlington
Period7/15/187/19/18

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Cho, H., Choi, S., & Lissenden, C. J. (2019). Performance of EMATs for robotic inspection of cracks in welded stainless steel canisters. In S. Laflamme, S. Holland, & L. J. Bond (Eds.), 45th Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 38 [020023] (AIP Conference Proceedings; Vol. 2102). American Institute of Physics Inc.. https://doi.org/10.1063/1.5099727