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Analysis of Accidental Collision of Blue Whale with Submerged Floating Tunnel
Submerged Floating Tunnel (SFT) is a tunnel that floats in water, supported by its buoyancy acting as a means of connecting countries and continents and if built will become the largest man-made structure underwater. Apart from the complexities and challenges involved in its design and construction, the threat the structure may pose to aquatic life and the disruption of natural habitats and feeding regimes is a serious concern. In this work, a 20 span SFT anchored firmly to the seabed with tethers spaced at 100 m is modelled in ABAQUS/CAE. The model after validation with available results of the impact load of a steel ball is subjected to a load of a Blue whale (with isotropic properties) hitting at speeds of 9 m/s, 7 m/s, 5 m/s, 3 m/s. The 3D geometry of Blue whale is developed in AutoCAD 2017 and imported into ABAQUS 6.14. Parametric studies have been carried out by varying the grades of concrete (M30, M35, M40, M50) for different velocities of the Blue whale. Explicit dynamic analysis is carried out for the determination of Bending stress and deflection developed in the SFT due to the Blue whale. Based on the results obtained from the analysis, conclusions were drawn on the minimum size and grade of concrete of SFT that can withstand a collision.
Analysis of Accidental Collision of Blue Whale with Submerged Floating Tunnel
Submerged Floating Tunnel (SFT) is a tunnel that floats in water, supported by its buoyancy acting as a means of connecting countries and continents and if built will become the largest man-made structure underwater. Apart from the complexities and challenges involved in its design and construction, the threat the structure may pose to aquatic life and the disruption of natural habitats and feeding regimes is a serious concern. In this work, a 20 span SFT anchored firmly to the seabed with tethers spaced at 100 m is modelled in ABAQUS/CAE. The model after validation with available results of the impact load of a steel ball is subjected to a load of a Blue whale (with isotropic properties) hitting at speeds of 9 m/s, 7 m/s, 5 m/s, 3 m/s. The 3D geometry of Blue whale is developed in AutoCAD 2017 and imported into ABAQUS 6.14. Parametric studies have been carried out by varying the grades of concrete (M30, M35, M40, M50) for different velocities of the Blue whale. Explicit dynamic analysis is carried out for the determination of Bending stress and deflection developed in the SFT due to the Blue whale. Based on the results obtained from the analysis, conclusions were drawn on the minimum size and grade of concrete of SFT that can withstand a collision.
Analysis of Accidental Collision of Blue Whale with Submerged Floating Tunnel
Structural Integrity
Fonseca de Oliveira Correia, José António (editor) / Choudhury, Satyabrata (editor) / Dutta, Subhrajit (editor) / Rana, Sahil (author) / Abdul Akbar, M. (author) / Sharma, Rachit (author) / Thakur, Ankush (author)
International Conference on Advances in Structural Mechanics and Applications ; 2021 ; Silchar, India
Advances in Structural Mechanics and Applications ; Chapter: 6 ; 79-87
Structural Integrity ; 27
2022-06-03
9 pages
Article/Chapter (Book)
Electronic Resource
English
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