Final published version
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Dynamic Response of Inflatable Offshore Fender Barrier Structures under Impact Loading
AU - Aboshio, Aaron
AU - Green, Sarah
AU - Ye, Jianqiao
PY - 2013/9
Y1 - 2013/9
N2 - Inflatable offshore fender barrier structures are anti terrorist structures that function primarily to either stop an impacting vessel, incapacitate its crew or delay terror events. In a quest to ensure effective utilization of the compressed air in the barrier which functions to increase barrier stiffness, dissipate impact energy and potential for high vessel instability after impact; a new design of the structure is proposed in this paper. Its dynamic response under a vessel of 0.16MJ of kinetic energy impacting on the barrier was assessed using the finite element method. Fluid structure interaction of the structure was achieved using the Eulerian-Lagrangian formulation and the enclosed air in the barrier structure was modelled using the 'surface based cavities' capabilities in ABAQUS. The results indicate desirable response of the structure following impact by the vessel. This is important as low initial inflation could be utilised for the proposed design compared with the current design and the likelihood to delay terror events is maximized.
AB - Inflatable offshore fender barrier structures are anti terrorist structures that function primarily to either stop an impacting vessel, incapacitate its crew or delay terror events. In a quest to ensure effective utilization of the compressed air in the barrier which functions to increase barrier stiffness, dissipate impact energy and potential for high vessel instability after impact; a new design of the structure is proposed in this paper. Its dynamic response under a vessel of 0.16MJ of kinetic energy impacting on the barrier was assessed using the finite element method. Fluid structure interaction of the structure was achieved using the Eulerian-Lagrangian formulation and the enclosed air in the barrier structure was modelled using the 'surface based cavities' capabilities in ABAQUS. The results indicate desirable response of the structure following impact by the vessel. This is important as low initial inflation could be utilised for the proposed design compared with the current design and the likelihood to delay terror events is maximized.
KW - Coupled eulerian-lagrangian
KW - Dynamic analysis
KW - Finite element method
KW - Impact loading
KW - Offshore barrier
KW - Pneumatic structures
U2 - 10.4203/ccp.102.148
DO - 10.4203/ccp.102.148
M3 - Conference contribution/Paper
AN - SCOPUS:84893982335
SN - 9781905088577
T3 - Civil-Comp Proceedings
BT - Proceedings of the 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013
A2 - Topping, B. H. V.
A2 - Iványi, P.
PB - Civil-Comp Press
CY - Stirlingshire
T2 - 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013
Y2 - 3 September 2013 through 6 September 2013
ER -