The use of strain based design in pipeline technology has been widely discussed during the last decade for pipelines in harsh environment. In such cases pipelines should be designed based on strain criterion. Strain based design poses a number of challenges, particularly on pipe size and material properties. This paper presents preliminary studies on prediction of buckling strain and buckling mode for X80 high-strain line pipe by finite element methods based on full-scale test. The effects of several parameters such as internal pressure, material properties, pipe size and geometric imperfection, were investigated to predict the critical strain for 48'' diameter line pipe under compression and pure bending with 12 MPa internal pressure. Material parameters of a specification for high strain line pipe were analyzed to promote its application in the 2nd West-East pipeline of China National Petroleum Corporation.


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    Title :

    Deformation behavior prediction of X80 steel line pipe and implication on high strain pipe specification


    Additional title:

    Vorhersage des Verformungsverhaltens von Leitungsrohren aus dem Stahl X80 und Auswirkungen auf die Spezifikation von Rohren mit hoher Verformungsfähigkeit


    Contributors:
    Chen, Hongyuan (author) / Ji, Lingkang (author) / Gong, Shaotao (author) / Gao, Huilin (author)


    Publication date :

    2008


    Size :

    6 Seiten, 9 Bilder, 5 Tabellen, 15 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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