A new high-strength steel with a specified minimum yield strength of 120 ksi has been developed for line pipe applications (Oil & Gas Journal, December, 1rd, 2003, page 56). Because existing specifications were not originally intended for X-120 and no service experience exists for this grade, full-size pipe tests and finite-elemente analyses were conducted to evaluate structural performance. This article presents results of burst and fracture-arrest studies and analysis that demonstrate suffcient pressure-containment capacity. For crack arrest, full-size tests evaluated the intrinsic arrestability of the material and the effectiveness of crack arrestors. Although the X-120 pipe did not have sufficient toughness for intrinsic arrest for the conditions tested, tight-fitting sleeve crack arrestors proved effective in stopping propagating fractures.


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    Titel :

    Full-scale burst, crack-arrest testing vets X-120 line pipe


    Weitere Titelangaben:

    Berstversuche und Tests zum Stoppen von Rissen an X-120 Rohren


    Beteiligte:
    Papka, S.D. (Autor:in) / Stevens, J.H. (Autor:in) / Macia, M.L. (Autor:in) / Fairchild, D.P. (Autor:in) / Petersen, C.W. (Autor:in)

    Erschienen in:

    Oil and Gas Journal ; 102 , 8 ; 54-59


    Erscheinungsdatum :

    2004


    Format / Umfang :

    6 Seiten, 5 Bilder, 5 Tabellen, 17 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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