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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2011, Vol. 12 Issue (8): 627-636    DOI: 10.1631/jzus.A1000489
Civil and Mechanical Engineering     
Buckling response of offshore pipelines under combined tension, bending, and external pressure
Shun-feng Gong, Lin Yuan, Wei-liang Jin
Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China
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Abstract  The buckle and collapse of offshore pipeline subjected to combined actions of tension, bending, and external pressure during deepwater installation has drawn a great deal of attention. Extended from the model initially proposed by Kyriakides and his co-workers, a 2D theoretical model which can successfully account for the case of simultaneous tension, bending, and external pressure is further developed. To confirm the accuracy of this theoretical method, numerical simulations are conducted using a 3D finite element model within the framework of ABAQUS. Excellent agreement between the results validates the effectiveness of this theoretical method. The model is then used to study the effects of several important factors such as load path, material properties, and diameter-to-thickness ratio, etc., on buckling behaviors of the pipes. Based upon parametric studies, a few significant conclusions are drawn, which aims to provide the design guidelines for deepwater pipeline with solid theoretical basis.

Key wordsDeepwater      Offshore pipeline      Buckle      External pressure     
Received: 04 December 2010      Published: 02 August 2011
CLC:  X703  
Cite this article:

Shun-feng Gong, Lin Yuan, Wei-liang Jin. Buckling response of offshore pipelines under combined tension, bending, and external pressure. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(8): 627-636.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1000489     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2011/V12/I8/627

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