IAEA coordinated research project on Master Curve Approach to monitor fracture toughness of RPV steels: effect of loading rate

Hans-Werner Viehrig, Enrico Lucon, Marc Scibetta

    Research outputpeer-review


    In the final evaluation for the application of the Master Curve in the IAEA Coordinated Research Project Phase 5 (CRP-5), one of the areas which was identified as needing further work concerned the effects of loading rate on the reference temperature To up to impact loading conditions. This subject represents one of the three topic areas within the current CRP-8. The effect of loading rate can be broken down into two distinct aspects: 1) the effect of loading rate on the Master Curve To values for loading rates within the specified in ASTM E1921-05 for quasi-static loading (0.1 – 2 MPaVm/s); 2) the effect of loading rate on To values for higher loading rates, including impact conditions using instrumented precracked Charpy (PCC) specimens. The new CRP includes both aspects, but primarily focuses on the second element of loading rate effects, i.e. loading rates above 2 MPaVm/s. These issues are investigated within the topic area #2 of CRP-8 (Loading Rate Effect).
    Original languageEnglish
    Title of host publicationProceedings of PVP2007 2007 ASME Pressure Vessels and Piping Division Conference
    Place of PublicationUnited States
    StatePublished - 23 Jul 2007
    EventPVP 2007 - ASME, San Antonio, Texas
    Duration: 22 Jul 200726 Jul 2007


    ConferencePVP 2007
    Country/TerritoryUnited States
    CitySan Antonio, Texas

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