Structural Engineering and Mechanics

  • 제41권6호
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  • Pages.805-822
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  • 2012
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Buckling response of offshore pipelines under combined tension and bending

  • Gong, Shun-Feng (Institute of Structural Engineering, Zhejiang University) ;
  • Ni, Xing-Yue (Institute of Structural Engineering, Zhejiang University) ;
  • Yuan, Lin (Institute of Structural Engineering, Zhejiang University) ;
  • Jin, Wei-Liang (Institute of Structural Engineering, Zhejiang University)
  • 투고 : 2009.10.17
  • 심사 : 2012.02.23
  • 발행 : 2012.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Offshore pipelines have to withstand combined actions of tension and bending during deepwater installation, which can possibly lead to elliptical buckle and even catastrophic failure of whole pipeline. A 2D theoretical model initially proposed by Kyriakides and his co-workers which carried out buckling response analysis of elastic-plastic tubes under various load combinations, is further applied to investigate buckling behavior of offshore pipelines under combined tension and bending. In association with practical pipe-laying circumstances, two different types of loadings, i.e., bent over a rigid surface in the presence of tension, and bent freely in the presence of tension, are taken into account in present study. In order to verify the accuracy of the theoretical model, numerical simulations are implemented using a 3D finite element model within the framework of ABAQUS. Excellent agreement between the results validates the effectiveness of this theoretical method. Then, this theoretical model is used to study the effects of some important factors such as load type, loading path, geometric parameters and material properties etc. on buckling behavior of the pipes. Based upon parametric studies, a few significant conclusions are drawn, which offer a theoretical reference for design and installation monitoring of deepwater pipelines.

키워드

참고문헌

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피인용 문헌

  1. Engineering critical assessment for offshore pipelines with 3-D elliptical embedded cracks vol.51, 2015, https://doi.org/10.1016/j.engfailanal.2015.02.018
  2. On 3-D crack problems in offshore pipeline with large plastic deformation vol.67-68, 2013, https://doi.org/10.1016/j.tafmec.2014.01.001
  3. Buckling of reinforced thermoplastic pipe (RTP) under combined bending and tension vol.9, pp.5, 2014, https://doi.org/10.1080/17445302.2014.887171
  4. Mechanical behavior of pipe reinforced by steel wires under external pressure vol.35, pp.5, 2016, https://doi.org/10.1177/0731684415620687
  5. Asymmetric collapse of offshore pipelines under external pressure vol.8, pp.2, 2013, https://doi.org/10.1080/17445302.2012.691273
  6. Elastic-plastic bending properties of an AZ31B magnesium alloy based on persistent tensile preloads vol.708, 2017, https://doi.org/10.1016/j.jallcom.2017.03.038
  7. Buckle propagation of offshore pipelines under external pressure vol.29, pp.1, 2012, https://doi.org/10.1016/j.marstruc.2012.10.006
  8. Asymmetric buckling of offshore pipelines under combined tension, bending and external pressure vol.10, pp.2, 2015, https://doi.org/10.1080/17445302.2014.918310
  9. Strain-based CTOD estimation formulations for fracture assessment of offshore pipelines subjected to large plastic deformation vol.91, 2014, https://doi.org/10.1016/j.oceaneng.2014.08.020
  10. Nonlinear elastic-plastic stress investigation for two interacting 3-D cracks in offshore pipelines vol.38, pp.5, 2015, https://doi.org/10.1111/ffe.12259
  11. Elastic–plastic fracture analyses for pipeline girth welds with 3D semi-elliptical surface cracks subjected to large plastic bending vol.105-106, 2013, https://doi.org/10.1016/j.ijpvp.2013.03.009