Instrumented impact testing as a way to obtain further information on the behaviour of steel in welded constructions

A. Nielsen

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    Abstract

    Based on the experience gained by instrumented impact testing of ten different mild steels using test pieces of different geometrical shape (Charpy V-notch, Charpy knife-notch, DVM, Schnadt K0, K0,5, K1, and K2), some general features are seen of the fracture process during impact testing. Steels can be divided into two main groups which are significantly different with respect to the behaviour during Charpy V-notch testing. The difference vanishes when a crack-like notch is used, and other properties of steel are revealed. It is evident that even when modified, the impact testing bears little resemblance to what is happening in an actual steel construction. For the purpose of investigating the fracture conditions in welds, it seems more significant to relate the dynamic aspects to the speed of propagation of the crack when it starts to penetrate the volume considered
    at a certain stress level.
    Original languageEnglish
    Place of PublicationRoskilde, Denmark
    PublisherRisø National Laboratory
    Number of pages26
    Publication statusPublished - 1976
    SeriesRisø-M
    Number1865
    ISSN0418-6435

    Keywords

    • Risø-M-1865

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