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Ultrasound as a non-destructive tool to estimate polymer embrittlement

  • Jari Rinta-aho
  • , Konsta Sipilä
  • , Pavel Zak
  • , Zuzana Sarsounova
    • ÚJV Řež a.s.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific

    57 Downloads (Pure)

    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
    PublisherNOMAD project
    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 2021 → 5 May 2021

    Conference

    ConferenceEuropean Symposium on NDE for NPP
    Country/TerritoryGermany
    CitySaarbruchen
    Period4/05/21 → 5/05/21

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