Ocean Systems Engineering

  • 제4권4호
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  • Pages.279-291
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  • 2014
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Three dimensional finite element analysis of 4 inch smart flange on offshore pipeline

  • 투고 : 2014.08.10
  • 심사 : 2014.12.05
  • 발행 : 2014.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Smart flanges are used for pipeline and riser repair in subsea. In a typical case in the gas export pipeline project, the end cap bolts of a 4inch smart flange were broken during operation, and in turn leakage occurred. This work presents the detail of three dimensional finite element analysis of the smart flange to support the observed end cap bolts failure. From finite element analysis it turns out that in the presence of external bending moment, an uneven contact distribution is present between seal and end cap, which in turn changes the uniform load distribution on bolts and threaten the integrity of bolts. On the other hand, 3D finite element analysis of interaction between pipeline and seabed is presented by means of Abaqus to explore the distribution of bending moment along the pipeline route. It is found that lateral buckling occurs in the pipeline which introduces large bending moment.

키워드

참고문헌

  1. ANSI/API SPEC 5L, Specification for Line Pipe
  2. API SPEC 6H, Specification on End Closures, Connectors and Swivels
  3. ASME/ANSI B16.5, Pipe Flanges and Flanged Fittings
  4. ASME/ANSI B16.47, Large Diameter Pipe Flanges
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  8. DNV-RP-F109, On-Bottom Stability Design of Submarine Pipelines.
  9. DNV-RP-F110, Global Buckling Of Submarine Pipelines.
  10. DNV-RP-F113, Pipeline Subsea Repair.
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  22. Yong, B. (2001), Pipeline and Risers, Elsevier Ocean Engineering Book.

피인용 문헌

  1. Static metal sealing mechanism of a subsea pipeline mechanical connector vol.8, pp.7, 2016, https://doi.org/10.1177/1687814016654821
  2. Analysis of offshore pipeline laid on 3D seabed configuration by Abaqus vol.5, pp.1, 2015, https://doi.org/10.12989/ose.2015.5.1.031
  3. Failure Analyses of Propagation of Cracks in Repaired Pipe Under Internal Pressure vol.19, pp.1, 2019, https://doi.org/10.1007/s11668-019-00592-3