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#7156. Local joint flexibility of tubular X-joints stiffened with external ring or external plates
| November 2026 | publication date |
| Proposal available till | 11-05-2025 |
| 4 total number of authors per manuscript | 0 $ |
| The title of the journal is available only for the authors who have already paid for |
| Journal’s subject area: |
| Ocean Engineering; Mechanical Engineering; Mechanics of Materials; Materials Science (all); |
| place 1 | place 2 | place 3 | place 4 |
| Free | Free | Free | Free |
| 2350 $ | 1200 $ | 1050 $ | 900 $ |
Contract №7156.1   | Contract №7156.2 | Contract №7156.3 | Contract №7156.4 |
1 place - free (for sale)
2 place - free (for sale)
3 place - free (for sale)
4 place - free (for sale)
Abstract:
In the present paper, the Local Joint Flexibility (LJF) of the ring-stiffened X-joints and plate-stiffened X-joints under compressive load is investigated. In the first phase, a finite element (FE) model was generated and verified with the results of available experimental tests and equations. In the next phase, a set number of 234 FE models were created to evaluate the role of the external ring size (?r and ?r), the external plate size (?p and ?p), and the connection geometry (?, ?, and ?) on the LJF factor (fLJF). In these FE models, the weld connecting the chord and brace members was generated. The results indicated that the fLJF of a plate stiffened joint can be down to 76% of the fLJF of the corresponding un-stiffened joint. Also, the effect of the ring size on the fLJF was more than the effect of the plate size on the fLJF, because of the stiffener position. Despite the notable effect of the ring and the plate on the fLJF, there is not any study or formula on tubular connections stiffened with ring or plate. Therefore, the FE results were used to propose two parametric formulas for determining the fLJF in X-joints with external ring or external plate under brace compressive load. Moreover, the derived formulas were checked based on the UK DoE acceptance criteria.
Keywords:
Design equations; External plate; External ring plate; Local joint flexibility (LJF); Parametric study; X-connections
Contacts :
2 place - free (for sale)
3 place - free (for sale)
4 place - free (for sale)
Abstract:
In the present paper, the Local Joint Flexibility (LJF) of the ring-stiffened X-joints and plate-stiffened X-joints under compressive load is investigated. In the first phase, a finite element (FE) model was generated and verified with the results of available experimental tests and equations. In the next phase, a set number of 234 FE models were created to evaluate the role of the external ring size (?r and ?r), the external plate size (?p and ?p), and the connection geometry (?, ?, and ?) on the LJF factor (fLJF). In these FE models, the weld connecting the chord and brace members was generated. The results indicated that the fLJF of a plate stiffened joint can be down to 76% of the fLJF of the corresponding un-stiffened joint. Also, the effect of the ring size on the fLJF was more than the effect of the plate size on the fLJF, because of the stiffener position. Despite the notable effect of the ring and the plate on the fLJF, there is not any study or formula on tubular connections stiffened with ring or plate. Therefore, the FE results were used to propose two parametric formulas for determining the fLJF in X-joints with external ring or external plate under brace compressive load. Moreover, the derived formulas were checked based on the UK DoE acceptance criteria.
Keywords:
Design equations; External plate; External ring plate; Local joint flexibility (LJF); Parametric study; X-connections
Contacts :
