Mechanical performance and life prediction for canister copper

Juhani Rantala, Pertti Auerkari, Jorma Salonen, Stefan Holmström, Anssi Laukkanen, Tapio Saukkonen

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

    Abstract

    The creep response of the OFP copper at 175°C has been studied by uniaxial, multiaxial creep testing, metallography and surface inspections. Surface cracks have been observed in a uniaxial test which has been running for more than 70 000 h (eight years). In a CT-specimen creep cavities have been observed after an exposure of 25 000 h. A purpose-built creep strain model has been implemented into FE analysis to characterize the stress multiaxiality and the stress state of the CT specimen. The results have been applied for life prediction of copper at foreseen levels of stress and temperature at the repository.
    Original languageEnglish
    Title of host publicationBaltica VIII
    Subtitle of host publicationLife Management and Maintenance for Power Plants
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages151-162
    Volume1
    ISBN (Electronic)978-951-38-7592-3
    ISBN (Print)978-951-38-7591-6
    Publication statusPublished - 2010
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventBALTICA VIII - International Conference on Life Management and Maintenance for Power Plants - Helsinki-Stockholm, Finland
    Duration: 18 May 201020 May 2010

    Publication series

    SeriesVTT Symposium
    Number264
    ISSN0357-9387

    Conference

    ConferenceBALTICA VIII - International Conference on Life Management and Maintenance for Power Plants
    CountryFinland
    CityHelsinki-Stockholm
    Period18/05/1020/05/10

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  • Cite this

    Rantala, J., Auerkari, P., Salonen, J., Holmström, S., Laukkanen, A., & Saukkonen, T. (2010). Mechanical performance and life prediction for canister copper. In Baltica VIII: Life Management and Maintenance for Power Plants (Vol. 1, pp. 151-162). VTT Technical Research Centre of Finland. VTT Symposium, No. 264 http://www.vtt.fi/inf/pdf/symposiums/2011/S264.pdf