The elastic T-stress is an important constraint parameter for characterizing elastic-plastic crack-tip fields and in fracture assessment procedures. However, many of the methods reported in the literature for estimating T-stress are not easily suited for surface-cracked pipes because these are three-dimensional in nature. Here, the line-spring method is demonstrated to be an efficient and accurate tool for the constraint estimation in surface-cracked pipes. Detailed three-dimensional analyses are performed to verify the line-spring results. Using the line-spring method, the effects of different crack geometries and diameter-to-thickness ratio on stress-intensity factor (SIF) and T-stress in circumferentially surface-cracked pipes are examined. Further, a compendium of normalised SIF and T-stress values for surface-cracked pipes in remote tension and bending, calculated from a total of 1000 analyses, is tabulated. Finally, the application of an 'elastic-plastic' T-stress under large-scale plasticity is explored.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Structural integrity of pipelines: T-stress by line-spring


    Beteiligte:
    Jayadevan, K.R. (Autor:in) / Thaulow, Christian (Autor:in) / Ostby, E. (Autor:in) / Berg, E. (Autor:in) / Skallerud, B. (Autor:in) / Holthe, K. (Autor:in) / Nyhus, B. (Autor:in)


    Erscheinungsdatum :

    2005


    Format / Umfang :

    22 Seiten, 36 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Structural integrity of aging buried pipelines having cathodic protection

    Shipilov, Sergei A. / May, Iain Le | Tema Archiv | 2006


    Pipeline integrity of ethylene pipelines

    Nordquist, Greg | Tema Archiv | 2005


    Condition based integrity assessment of pipelines

    Kumar, Amrita / Hannum, Robert / Beard, Shawn J. et al. | Tema Archiv | 2007


    Seismic integrity of high-strength pipelines

    Suzuki, Nobuhisa / Igi, Satoshi / Masamura, Katsumi | Tema Archiv | 2007