Determination of the Critical Value of the J-Integral at High Loading Rates Using the Wedge-Loaded Specimen

    Volume 13, Issue 6 (November 1985)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 5


    Klepaczko, JR
    Visiting Professor, Laboratoire des Sciences des Matériaux de la Mécanique,

    Abstract

    A novel procedure is proposed, which improves an earlier one, to determine the critical value of the J-integral at high loading rates. A more detailed analysis of such a test along with some experimental results has been published elsewhere. The present procedure is based on ASTM Test for JIc, a Measure of Fracture Toughness (E 813). To perform the impact test, the split Hopkinson pressure bar concept is used together with the wedge-loaded compact tension specimen (WLCT).

    This paper provides a better understanding of the proposed procedure by a more accurate analysis of the frictional effects which occur between the loading wedge and the WLCT specimen. In addition, a unique procedure has been developed to measure the coefficient of Coulomb friction in the real environment of fracture KIc or JIc tests.


    Paper ID: JTE10979J

    DOI: 10.1520/JTE10979J

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    Author
    Title Determination of the Critical Value of the J-Integral at High Loading Rates Using the Wedge-Loaded Specimen
    Symposium , 0000-00-00
    Committee E08