A simplified key-curve approach for J-R-curve testing of CT-specimens

Kim Wallin

    Research output: Book/ReportReport


    A novel key-curve based procedure for crack length measurement on CT-specimens is presented. The procedure is compared with other testing methods for three different pressure vessel steels. The new procedure is shown to yield accurate enough results for normal J-R-curve testing. Different causes affecting the accuracy of the method are discussed.
    Original languageEnglish
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Number of pages22
    ISBN (Print)951-38-2645-7
    Publication statusPublished - 1987
    MoE publication typeNot Eligible

    Publication series

    SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports


    • fracture testing
    • crack propagation
    • measurement


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