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Title: Reliability-based fatigue analysis of steel catenary riser with seabed interaction
Author: Elosta, Hany
ISNI:       0000 0004 2744 7988
Awarding Body: University of Strathclyde
Current Institution: University of Strathclyde
Date of Award: 2013
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This thesis models a Steel Catenary Riser (SCR) on soft clay subjected to randon waves. SCR-seabead interaftion is modelled using a hysteretic non-linear model in the vertical seabed direction and Coulomb friction model in the lateral direction together with an improved model that includes the breakoutsoil resistance. The influence of the uncertainty in the geotechnical parameters and the development of the trench in the seabead on the dynamic response is determind. The structural behaviour and a probabilistic approach to fatigue performance in the touchdown zone is developed. The probabilistic model can be employed as a risk analysis tool for the SCR assessment, leading to a safer and more cost0effective design of the SCR system. It is noted that confidence in seabed interaction modelling and geotechnical parameter values is needed in order to have confidence in the final numerical analysis results.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral