Ultrasound as a non-destructive tool to estimate polymer embrittlement

Jari Rinta-aho, Konsta Sipilä, Pavel Zak, Zuzana Sarsounova

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

In our study, 10 specimens of commercially available coaxial cable were exposed to gamma irradiation using two different dose rates and five different total doses. Then, the sound velocities were measured using traditional pulse-echo approach with an integrated transducermicrometer setup developed by VTT. EaB values were measured via tensile testing by ÚJV. The results clearly show, that sound velocity increases and EaB decreases when polyethylene is exposed to gamma irradiation. The correlation between sound velocity and EaB is linear. Based on the results, it is possible to use sound velocity as a low-cost nondestructive indicator for gamma-irradiation induced degradation of polyethylene.
Original languageEnglish
Title of host publicationEuropean NDE Symposium for NPP
Subtitle of host publicationEvent booklet
Pages17
Number of pages1
Publication statusPublished - 7 May 2021
MoE publication typeNot Eligible
EventEuropean Symposium on NDE for NPP - Franhofer Institute, Saarbruchen, Germany
Duration: 4 May 20215 May 2021

Conference

ConferenceEuropean Symposium on NDE for NPP
Country/TerritoryGermany
CitySaarbruchen
Period4/05/215/05/21

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