Finite-element modeling of offshore pipeline lateral buckling

Zhou, Tao, Tian, Yinghui, White, David J. and Cassidy, Mark J. (2019) Finite-element modeling of offshore pipeline lateral buckling. Journal of Pipeline Systems Engineering and Practice, 10 (4), [04019029]. (doi:10.1061/(ASCE)PS.1949-1204.0000396).

Record type: Article

Abstract

The accurate prediction of lateral buckling is crucial for offshore pipelines that are subjected to high temperature and internal pressure. As a challenging topic, modeling pipeline buckling involves geometric nonlinearity and complex pipe-soil interaction. This paper introduces a simple finite element modeling approach to simulate the pipeline lateral buckle behavior. After validation against established knowledge, a variety of parametric analyses were systematically performed to investigate the effects of out-of-straightness, seabed friction factor, elastic slip, internal pressure, and initial stress. This study aims to provide a practical numerical approach for pipeline buckling and conveys a better understanding of the key parameters that must be considered when modeling the pipeline buckling problem.

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