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Abstract
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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
Submitted: June 07, 2012
Accepted: June 09, 2012
Published: December 15, 2012 |
Abstract:
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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.
Key words: Fatigue , non-linear hysteretic seabed, Steel Catenary Riser (SCR) , Touch Down Zone (TDZ), , ,
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Cite this Reference:
Kosar Rezazadeh, Hodjat Shiri , Liang Zhang and Yong Bai, . Fatigue Generation Mechanism in Touchdown Area of Steel Catenary Risers in Non-Linear Hysteretic Seabed. Research Journal of Applied Sciences, Engineering and Technology, (24): 5591-5601.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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