Numerical Simulation on Fatigue Life Assessment of Free Span for Submarine Pipeline

Jie Dong; Xue Dong Chen; Bing Wang; Wei He Guan; Tie Cheng Yang; Zhi Chao Fan; Jian Hua Pan

doi:10.4028/www.scientific.net/AMM.750.153

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 750Numerical Simulation on Fatigue Life Assessment of...

Numerical Simulation on Fatigue Life Assessment of Free Span for Submarine Pipeline

Abstract:

The upper and lower courses of sea oil and gas exploitationare connected by submarine pipeline which is called life line project. Free span often occurs because of the unevenness and scour of seabed, and fatigue is one of the main failure modes.In this paper, with the finite element numerical simulation method, based on the harmonic response analysis, the research on the structural response of free span under the vibration induced by vortex was investigated, and the effect of the factors such as flow velocity, length of free span. According to the analysis results,the fatigue life of free span was evaluated.

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Periodical:

Applied Mechanics and Materials (Volume 750)

Pages:

153-159

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.750.153

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Online since:

April 2015

Authors:

Jie Dong*, Xue Dong Chen, Bing Wang, Wei He Guan, Tie Cheng Yang, Zhi Chao Fan, Jian Hua Pan

Keywords:

Fatigue, Free Span, Numerical Simulation, Submarine Pipeline

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