Based on the momentum balance principle a new governing equation for the dynamic crack propagation is presented. Through the combination of the experimental data obtained in Part I of this research and the model here developed, the quantitative prediction of the dynamic crack evolution as a function of the time, the material dynamic fracture properties, including pipeline limiting crack speed, and the conditions to obtain leak before break are obtained. The use of this test/analysis methodology allows the prevention of unstable axial crack propagation in pipelines, assuring their structural integrity.


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    Titel :

    Dynamic axial crack propagation in steel line pipes. Part II: Theoretical developments


    Weitere Titelangaben:

    Dynamische axiale Rissausbreitung in Stahl-Pipelines. Teil II: Theoretische Entwicklungen


    Beteiligte:
    Murtagian, G.R. (Autor:in) / Ernst, H.A. (Autor:in)

    Erschienen in:

    Engineering Fracture Mechanics ; 72 , 16 ; 2535-2548


    Erscheinungsdatum :

    2005


    Format / Umfang :

    14 Seiten, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Dynamic crack propagation in steel line pipes. Part I: Experimental investigation

    Murtagian, G.R. / Johnson, D.H. / Ernst, H.A. | Tema Archiv | 2005



    Axial Crack Propagation and Arrest in Pressurized Fuselage

    Kosai, M. / Shimamoto, A. / Yu, C. T. et al. | British Library Conference Proceedings | 1995



    Fatigue Crack Propagation in Steel Weldments

    Lawrence, F. V. / Munse, W. H. | SAE Technical Papers | 1972