Characterization of ductile fracture toughness based on subsized charpy and tensile test results

Winfried Schmitt, Heli Talja, Wolfgang Böhme, Sabine Oeser, Horst Stöckl

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

    4 Citations (Scopus)

    Abstract

    Micromechanical material models have been established as a powerful tool for the prediction of the ductile fracture resistance. Suitable damage parameters of the Gurson model can be obtained from small volume specimens like tensile, Charpy or subsized Charpy specimens and then applied to predict transferable J-resistance curves as obtained from standard fracture mechanics specimens. In this paper dynamic tests on subsized Charpy and precracked bend specimens, SE(B), as well as static and dynamic experiments on tensile specimens for the ferritic steel A533B (HSST 03), are presented and analyzed. Two- and three-dimensional finite element models are used to determine the stress-strain behaviour and strain rate sensitivity and to find a set of damage parameters which explains the results. These parameters are then used to predict a J-resistance curve representative for a compact specimen C(T)25.
    Original languageEnglish
    Title of host publicationSmall specimen test techniques
    EditorsW.R. Corwin, Stan T. Rosinski, E. van Walle
    Place of PublicationPhiladelphia
    PublisherAmerican Society for Testing and Materials (ASTM)
    Pages63-81
    ISBN (Electronic)978-0-8031-5565-7
    ISBN (Print)978-0-8031-2476-9
    DOIs
    Publication statusPublished - 1998
    MoE publication typeA4 Article in a conference publication
    EventSmall Specimen Test Results - New Orleans, United States
    Duration: 13 Jan 199714 Jan 1997

    Publication series

    SeriesASTM Selected Technical Papers
    NumberSTP1329

    Conference

    ConferenceSmall Specimen Test Results
    CountryUnited States
    CityNew Orleans
    Period13/01/9714/01/97

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