Verification of ductile fracture mechanics assessment methods by a wide plate test

Horst Kordisch, Ludvig Hodulak, Heli Talja

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    In order to simulate the behavior of a circumferential crack in a RPV-cylinder wall under pressurized thermal shock (PTS) conditions a large plate made of RPV-steel 22NiMoCr37 was tested under four point bending. The depth of the surface crack was 35% of the wall thickness with a c/a-ratio of 2.5. JR-curves for the material were measured from side-grooved and smooth CT-specimens of different dimensions. The aim of the test was to achieve crack initiation and some amount of ductile crack growth and to verify ductile fracture mechanics analysis and assessment methods, including the transferability of material parameters measured on small-scale specimens to the plate. Therefore, analytical and three-dimensional elastic-plastic finite element analyses had been carried out to predict and to simulate the initiation and stable crack growth. Based on the J-integral concept the agreement between the experiment and the numerical simulation was improved if open-quotes constraint-modifiedclose quotes JR-curves were taken into account.
    Original languageEnglish
    Title of host publicationJoint IAEA/CSNI specialists' meeting on fracture mechanics verification by large-scale testing
    EditorsC.E. Pugh, B.R. Bass, J.A. Keeney
    Place of PublicationOak Ridge
    PublisherInternational Atomic Energy Agency IAEA
    Pages647-660
    Publication statusPublished - 1992
    MoE publication typeA4 Article in a conference publication
    EventJoint IAEA CSNI Specialists Meeting on Fracture Mechanics Verification by Large-Scale Testing - Oak Ridge, United States
    Duration: 26 Oct 199229 Oct 1992

    Publication series

    SeriesNUREG/CP
    Number0131
    ISSN0270-6482

    Conference

    ConferenceJoint IAEA CSNI Specialists Meeting on Fracture Mechanics Verification by Large-Scale Testing
    CountryUnited States
    CityOak Ridge
    Period26/10/9229/10/92

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  • Cite this

    Kordisch, H., Hodulak, L., & Talja, H. (1992). Verification of ductile fracture mechanics assessment methods by a wide plate test. In C. E. Pugh, B. R. Bass, & J. A. Keeney (Eds.), Joint IAEA/CSNI specialists' meeting on fracture mechanics verification by large-scale testing (pp. 647-660). International Atomic Energy Agency IAEA. NUREG/CP, No. 0131