Experimental Studies on the Full-Scale Fatigue Performance of X65 Marine Pipeline

Yan Hua Hu; De Yu Tang; Zong Tao Fang; Hu Li Niu

doi:10.4028/www.scientific.net/AMR.1052.555

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1052Experimental Studies on the Full-Scale Fatigue...

Experimental Studies on the Full-Scale Fatigue Performance of X65 Marine Pipeline

Abstract:

In this paper, the fatigue performance of X65 marine pipeline is domestically studied by means of full-scale fatigue tests (four-point bending + inner pressure), in which all the influencing factors, such as welding residual stress, stress concentration, initial defects, internal pressure shutdown and pressure fluctuation are taken into consideration comprehensively. Consequently, the fatigue cycles under different stress amplitude can be derived and applied to predicting the full-scale fatigue life of pipes quantitatively. Additionally, the test results are compared with the recommended data of international general standards, such as BS 7608 and DNV C203, by which the fatigue safety of pipes could be evaluated. Therefore, this study is not only beneficial to the accumulation of full-scale fatigue data of pipes, but also can provide quantitative basis for evaluating the fatigue life and ensuring the safety operation cycles of pipes.

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Periodical:

Advanced Materials Research (Volume 1052)

Pages:

555-560

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1052.555

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Online since:

October 2014

Authors:

Yan Hua Hu*, De Yu Tang, Zong Tao Fang, Hu Li Niu

Keywords:

Fatigue Performance, Full-Scale Fatigue Test, Marine Pipeline, Welded Joint

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* - Corresponding Author

References

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