This paper deals with the buckling phenomenon of undersea corroded pipelines. The corrosion degree of the pipelines is characterized by two parameters: the angular extension and the corrosion depth. Previous work has shown that symmetric and antisymmetric buckling modes occur in pipelines when the corrosion is uniformly extended over part of pipelines along the circumferential direction. The presented research analyzes the stability condition in pipelines with generalized corrosion. Using WKB (Wentzel-Kramers-Brillouin) theory for asymptotic expansion, the buckling mode and the eigenfunctions are derived for the corroded pipelines subjected to external hydrostatic pressure. Furthermore, asymptotic solutions are derived for pipelines with constant corrosion and compared with validated solutions obtained in previous work using equilibrium analysis. It shows that the buckling modes and buckling pressure from asymptotic analysis are identical to the exact solutions. Symmetric and antisymmetric buckling modes are found to occur for pipelines when the corrosion is not uniform but symmetric about its centerline.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Asymptotic analysis for buckling of undersea corroded pipelines


    Beteiligte:
    Xue, Jianghong (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    6 Seiten, 4 Bilder, 19 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Local buckling reliability assessment of corroded subsea pipelines under combined loads

    Bhardwaj, U. / Teixeira, A. P. / Soares, C. Guedes | TIBKAT | 2022


    Propagating buckles in corroded pipelines

    Hoo Fatt, M. S. / Xue, J. | British Library Online Contents | 2001


    Buckling strength of corroded plates

    Slater, P. A. / Pandey, M. D. / Sherbourne, A. N. et al. | British Library Conference Proceedings | 1998


    Determining the Remaining Life of Corroded Gas Pipelines

    Kucheryavyi, V. I. / Mil kov, S. N. | British Library Online Contents | 2006


    Burst criteria of corroded pipelines - defect acceptance criteria

    Ritchie, D. / Last, S. / European Pipeline Research Group et al. | British Library Conference Proceedings | 1995