A comparison between periodic and fixed BC for structural analysis of flexible risers

Mohammad Rahmati*, Giulio Alfano, Hamid Bahai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this project, the mechanical behaviour of a single CFT as a column subjected to axial compression will be analysed by finite element method. Both linear and nonlinear material properties of steel and concrete will be considered and the numerical results will be compared with a set of test results conducted by Harbin Institute of Technology, China. Then some interface defects between the steel and the filled concrete will be introduced to investigate their effects on the overall behaviour of the CFT and also the possible local buckling of the steel tube which has been observed in tests and in real structures. At the next stage, a few commonly used CFT joint sections will be modelled under both static and dynamic loading conditions, and their performance will be compared in terms of the maximum stresses and their locations identified. Finally, based on these simulations, some optimised designs of CFT joints will be proposed.
Original languageEnglish
Title of host publicationProceedings of the 23rd conference on computational mechanics
Subtitle of host publicationACME-UK 2015
EditorsAntonio J. Gill, Ruben Sevilla
Place of PublicationSwansea
PublisherSwansea University
Number of pages4
Publication statusPublished - 18 Apr 2015
Externally publishedYes
Event23rd UK Annual Conference on Computational Mechanics: ACME-UK 2015 - Swansea University, Swansea, United Kingdom
Duration: 8 Apr 201510 Apr 2015


Conference23rd UK Annual Conference on Computational Mechanics
Country/TerritoryUnited Kingdom


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