Geometrical Parametric Study and Development of Design Formulae for the SCF Distribution Along the Weld Toe in Multi-Planar CHS DKT-Connections of Offshore Structures
In the present paper, effects of geometrical parameters on the SCF distribution along the weld toe of multi-planar tubular DKT-joints under the axial loads are investigated. In order to study the multi-planar effect, SCF distribution in multi-planar joints is compared with the distribution in a uni-...
| Published in: | Volume 2: Structures, Safety and Reliability |
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| Main Authors: | , , |
| Format: | Text |
| Language: | unknown |
| Published: |
American Society of Mechanical Engineers (ASME)
2011
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| Subjects: | |
| Online Access: | https://research.usq.edu.au/item/v3629/geometrical-parametric-study-and-development-of-design-formulae-for-the-scf-distribution-along-the-weld-toe-in-multi-planar-chs-dkt-connections-of-offshore-structures https://doi.org/10.1115/OMAE2011-49121 |
| Summary: | In the present paper, effects of geometrical parameters on the SCF distribution along the weld toe of multi-planar tubular DKT-joints under the axial loads are investigated. In order to study the multi-planar effect, SCF distribution in multi-planar joints is compared with the distribution in a uni-planar joint having the same geometrical properties. Based on the multi-planar DKT-joint FE models which are verified against experimental results and the predictions of Lloyd’s Register (LR) equations, a complete set of SCF database is constructed. The FE models cover a wide range of geometrical parameters. Through nonlinear regression analysis, a new set of SCF parametric equations is established for the accurate and reliable fatigue design of multi-planar DKT-joints under axial loads. An assessment study of these equations is conducted against the experimental data and the acceptance criteria recommended by the UK DoE. |
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