Plate tearing and bottom damage in ship grounding |
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| Affiliation: | 1. Department of Naval Architecture and Ocean Engineering, College of Engineering, Seoul National University, Seoul, Republic of Korea;2. Institute of Engineering Research & Research Institute of Marine Systems Engineering, Seoul National University, Seoul, Republic of Korea;3. Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow, United Kingdom;4. Institute for Manufacturing, University of Cambridge, Cambridge, United Kingdom;5. Ocean and Ship Technology (OST) Research Group, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia;6. Department of Manufacturing Systems and Design Engineering, Seoul National University of Science and Technology, Seoul, Republic of Korea;1. Key Laboratory of High Performance Ship Technology of Ministry of Education, School of Transportation, Wuhan University of Technology, Wuhan 430063, China;2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE), Shanghai 200240, China;3. Global Technology Centre, Lloyd''s Register EMEA, Southampton S016-7QF, United Kingdom;4. Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001, Portugal;1. Department of Naval Architecture and Ocean Engineering, College of Engineering, Seoul National University, Seoul, South Korea;2. Institute of Engineering Research & Research Institute of Marine Systems Engineering, Seoul National University, Seoul, South Korea;3. Department of Naval Architecture,Ocean and Marine Engineering, University of Strathclyde, Glasgow, United Kingdom;4. Ocean and Ship Technology (OST) Research Group, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia;5. Group of Marine Offshore and Subsea Technology (MOST), School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom;6. Department of Manufacturing Systems and Design Engineering, Seoul National University of Science and Technology, Seoul, South Korea |
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| Abstract: | A theoretical method for plate tearing by a rigid wedge is developed in this paper. The studied model is an idealization of ship-grounding and collision damage. The analysis model postulates that the plate curls up into two curved surfaces behind the wedge tip and that the plate material ahead of the wedge is tensioned and ruptured due to the direct pushing. Based on a parametric study, a semi-empirical formula is proposed for determining grounding force in the event of a ship running onto rocks in a high-energy grounding. The bottom strengths of single hull structures and double hull structures in ship-grounding incidents are compared. Finally, simple formulae for determining damage resistance and the extent of damage in ship grounding, expressed in terms of the ship principal particulars, are developed. |
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