Effect of initial imperfection on the global buckling of submarine pipelines with different length

Run Liu, Chengfeng Li, Xinli Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The effect of initial imperfections on the pipeline global buckling is the theoretical basis of the global buckling stability analysis and buckling control of the submarine pipeline. The pipeline length for the analysis has a significant effect on the global buckling. According to the global buckling regularity of pipelines with different length, pipelines are divided into two types: the “long pipeline” and the “short pipeline”. The global buckling of pipelines with different initial imperfections is simulated by the 3D-Explicit method. The effect of an initial imperfection on the global buckling of a “long pipeline” and a “short pipeline” are proposed by analyzing the effect of initial imperfections on the expansion length of buckling. The global buckling of a long pipeline and a short pipeline with the same initial imperfection are compared. It shows that the post-buckling characteristic values, including moment, strain and lateral displacement, of the long pipeline are larger than those of the short pipeline. It shows that the long pipeline with an initial imperfection is more prone to destructive global buckling than the short pipeline with the same initial imperfection.

Original languageEnglish (US)
Title of host publicationProceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
PublisherInternational Society of Offshore and Polar Engineers
Pages201-206
Number of pages6
ISBN (Print)9781880653876
StatePublished - Jan 1 2018
Event28th International Ocean and Polar Engineering Conference, ISOPE 2018 - Sapporo, Japan
Duration: Jun 10 2018Jun 15 2018

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2018-June
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other28th International Ocean and Polar Engineering Conference, ISOPE 2018
CountryJapan
CitySapporo
Period6/10/186/15/18

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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  • Cite this

    Liu, R., Li, C., & Wu, X. (2018). Effect of initial imperfection on the global buckling of submarine pipelines with different length. In Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018 (pp. 201-206). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2018-June). International Society of Offshore and Polar Engineers.