Round-robin exercise on instrumented impact testing of precracked charpy specimens (IAEA coordinated research program phase 8)

Enrico Lucon, Hans Werner Viehrig

    Research outputpeer-review

    Abstract

    Within topic area 2 (Loading Rate Effects) of the IAEA Coordinated Research Project Phase 8 (CRP-8), a round-robin exercise (RRE) was performed. This was aimed at measuring impact fracture toughness in the ductile-to-brittle transition region using precracked Charpy specimens of the JRQ steel tested on instrumented pendulum machines. The objective of the round-robin was twofold: 1) assessing the applicability of the Master Curve approach (ASTM E1921-05) to data obtained at impact loading rates of the order of 105 MPa√m/s; 2) validating a draft test procedure developed by sub-committee TC5 of the European Structural Integrity Society (ESIS), in the absence of an official testing standard (ISO or ASTM). A comprehensive analysis of the RRE results received to date will be presented in this paper, including an assessment of the overall data scatter and the lab-to-lab variability. In this context, an outlier data set has been identified and investigated in great detail. Based on the results presented, it is noted that the test procedure appears reliable and easy to follow for the various participants.

    Original languageEnglish
    Title of host publication2007 Proceedings of the ASME Pressure Vessels and Piping Conference
    Subtitle of host publicationOperations, Applications and Components
    Place of PublicationUnited States
    PublisherAmerican Society for Testing and Materials
    Pages193-199
    Number of pages7
    ISBN (Print)0791842851, 9780791842850
    DOIs
    StatePublished - 2007
    Event2007 - ASME: Pressure Vessels and Piping Conference, PVP 2007 - ASME, San Antonio, TX
    Duration: 22 Jul 200726 Jul 2007

    Publication series

    NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
    Volume7
    ISSN (Print)0277-027X

    Conference

    Conference2007 - ASME
    Country/TerritoryUnited States
    CitySan Antonio, TX
    Period2007-07-222007-07-26

    ASJC Scopus subject areas

    • Mechanical Engineering

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