In collaboration with Shell Global Solutions and BP Arnoco, BG Technology carried out a research programme on the evaluation of prototype grade X100 line pipes for potential applications to future high-pressure gas transmission pipelines. As part of this collaborative programme, a study on the failure behaviour of X100 line pipes has been completed. The study combined material characterisation and experimental testing (both pipe ring expansion testing and full-scale pipe burst testing), The experimental tests involved pipe rings containing simulated metal loss defects, notch defects and part-wall fatigue cracks. The study focused on the macro-structural behaviour of damaged pipe walls. Defects in the parent metal, weld metal and seam weld heat affected zone (HAZ) were tested to failure. The tests showed a feature of ductile fracture failure and the test results demonstrated toughness-independent failure behaviour, indicating sufficiently high toughness levels in these materials. This paper describes this study and highlights the major findings from this work.


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    Titel :

    Failure behaviour of ultra high strength line pipe


    Weitere Titelangaben:

    Fehlerverhalten einer Rohrleitung aus ultrahochfestem Stahl


    Beteiligte:
    Fu, B. (Autor:in) / Millwood, N.A. (Autor:in) / Vu, D.Q. (Autor:in) / Matthews, S. (Autor:in) / Jacobs, M. (Autor:in)


    Erscheinungsdatum :

    2000


    Format / Umfang :

    11 Seiten, 9 Bilder, 6 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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