This paper presents the development of a procedure for calculating the dynamic J-R curve from the load-displacement trace of a pressed-notch drop-weight-tear test specimen. The slope of the JM -R curves generated provides technical insight into the range of steady-state propagation that occurs during these experiments. The slope of the JM-R curve (dJM/da) is compared to visually measured crack-tip-opening angle values and conclusions about the relationship between these parameters and the steady-state crack propagation resistance are made. These results are key in the development of a procedure to predict axial crack arrest in gas pipelines from laboratory specimen data.


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    Titel :

    Characterizing dynamic fracture toughness of linepipe steels using the pressed-notch drop-weight-tear test specimen


    Beteiligte:
    Rudland, David L. (Autor:in) / Wang, Yong-Yi (Autor:in) / Wilkowski, Gery (Autor:in) / Horsley, David J. (Autor:in)

    Erschienen in:

    Engineering Fracture Mechanics ; 71 , 16-17 ; 2533-2549


    Erscheinungsdatum :

    2004


    Format / Umfang :

    17 Seiten, 23 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Recent efforts on characterizing propagating ductile fracture resistance of linepipe steels

    Wilkowski, G. / Wang, Y.Y. / Rudland, D. | Tema Archiv | 2000


    Don't drop the drop-weight tear test

    Cosham, A. / Jones, D.G. / Eiber, R. et al. | British Library Online Contents | 2010


    Drop-weight tear test application to natural gas pipeline fracture control

    Eiber, R. | British Library Online Contents | 2013