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2013 (Vol. 5, Issue: 05)
Article Information:

The Study on Fatigue Experiment and Reliability Life of Submarine Pipeline Steel

Yan Yifei, Shao Bing, Liu Jinkun and Cheng Lufeng
Corresponding Author:  Yan Yifei 

Key words:  Fatigue life, offshore wave scouring, PLG-300C testing machine, P-S-N curve, submarine pipeline , ,
Vol. 5 , (05): 1695-1699
Submitted Accepted Published
July 24, 2012 August 21, 2012 February 11, 2013
Abstract:

The aim of the fatigue experiment study is to solve the fatigue fracture problem of X70 submarine tubing when it is under the scouring effect of offshore current. The multilevel fatigue experiments are carried out following the internation (GB4337-84) recommended method. The standard round bar fatigue specimen was made by the material of submarine pipeline steel. The fatigue life of submarine pipeline steel in different survival probability and P-S-N curve were achieved. According to reliability numerical analysis method, the reliability fatigue life of pipeline steel in different stress level is got. The results show that the fatigue life of X70 submarine pipeline steel obeys the normal distribution. The detection of submarine pipeline scouring condation should be enhanced and the pipeline zone which was scoured seriously should be repaired and controlled effectively in order to reduce the scouring effect of ocean current.
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  Cite this Reference:
Yan Yifei, Shao Bing, Liu Jinkun and Cheng Lufeng, 2013. The Study on Fatigue Experiment and Reliability Life of Submarine Pipeline Steel.  Research Journal of Applied Sciences, Engineering and Technology, 5(05): 1695-1699.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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