On the use of miniaturized ct specimens for fracture toughness characterization of RPV materials: PVP2016-63607

    Research outputpeer-review


    The tendency to reduce specimen size for fracture toughness characterization of structural materials is gaining a spectaculair interest in particular for irradiated materials. Indeed, the miniaturized compact tension (mini-CT) with a size of 10x10x4.2 mm is becoming very popular. With such a small volume, a large number of mini CT specimens can be extracted from broken Charpy impact specimens and therefore mlakes this geometry very attractive and consequently several round robin exercises are organized to quality this geometry. SCK•CEN has gained a lot of experience since the first usage of this geometry more than a decade ago. This geometry was qualified and tested in both unirradiated as well as irradiated condition. This paper overviews the SCK•CEN experience using the mini-CT geometry for fracture toughness characterization. In particular, it discusses the reliability of this geometry in comparison to large specimens such as the precracked Charpy and compares the advantages and limitations of such a geometry to derive some recommendation.
    Original languageEnglish
    Title of host publicationProceedings of the ASME 2016 Pressure Vessels and Piping Conference
    Subtitle of host publicationPVP2016
    Place of PublicationVancouver, British Columbia
    PublisherPVP - Pressure Vessels & Piping Conference
    Number of pages10
    EditionCodes and Standards
    ISBN (Print)978-0-7918-5036-7
    StatePublished - 14 Jul 2017
    Event2016 - ASME - Pressure Vessels and Piping Conference - Hyatt Regency Vancouver Hotel, Vancouver BC
    Duration: 17 Jul 201621 Jul 2016


    Conference2016 - ASME - Pressure Vessels and Piping Conference
    Abbreviated titlePVP2016
    CityVancouver BC
    Internet address

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