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2012 (Vol. 4, Issue: 24)
Article Information:

Fatigue Generation Mechanism in Touchdown Area of Steel Catenary Risers in Non-Linear Hysteretic Seabed

Kosar Rezazadeh, Hodjat Shiri , Liang Zhang and Yong Bai
Corresponding Author:  Kosar Rezazadeh 

Key words:  Fatigue , non-linear hysteretic seabed, Steel Catenary Riser (SCR) , Touch Down Zone (TDZ), , ,
Vol. 4 , (24): 5591-5601
Submitted Accepted Published
June 07, 2012 June 09, 2012 December 15, 2012
Abstract:

The complex nature of seabed interaction with Steel Catenary Risers (SCR) in Touch Down Zone (TDZ) and its vital impact on fatigue performance of SCRs makes serious difficulties against proposing simplified and robust solutions for engineering design industry where the fatigue in touch down zone is still considered as one the most challenging issues in riser design. In this study, authors have tried to explore in deep the mechanism of fatigue generation in touchdown area with sophisticated numerical simulations capturing the stress variation along the riser under complex load conditions in non-linear hysteretic seabed. The results show interesting unknown stress variation trends which is believed to be considerably useful in providing robust and simple solution for design industry.
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  Cite this Reference:
Kosar Rezazadeh, Hodjat Shiri , Liang Zhang and Yong Bai, 2012. Fatigue Generation Mechanism in Touchdown Area of Steel Catenary Risers in Non-Linear Hysteretic Seabed.  Research Journal of Applied Sciences, Engineering and Technology, 4(24): 5591-5601.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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