Some recent studies on the plastic behavior of web girders are described in the present paper. During the process of ship collision and grounding, various web girders will be subjected to large impact loads from various directions. Therefore, different deformation patterns can be identified. The recent developed plastic mechanism for local denting of web girders is depicted briefly and compared to various existing theoretical models. On the other hand, as a newly identified problem in ship grounding and collision process, the problem of lengthwise sliding deformation of web girders is described. Emphasis is placed on the description of the plastic mechanism and various energy dissipation patterns. The developed simplified methods on local denting and sliding deformation of web girders are compared with the results of experimental tests and finite element analysis respectively, both show satisfactory agreement. The proposed models will contribute substantially to the establishment of efficient methods for fast and reliable assessment of the outcome of accidental collision and grounding events. Such methods may in turn be incorporated into decision support tools for crisis handling in emergency situations, e.g. for tankers in disabled conditions.
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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4819-7
PROCEEDINGS PAPER
Plastic Behavior of Web Girders in Ship Collision and Grounding Available to Purchase
Lin Hong,
Lin Hong
Norwegian University of Science and Technology, Trondheim, Norway
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Jo̸rgen Amdahl
Jo̸rgen Amdahl
Norwegian University of Science and Technology, Trondheim, Norway
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Lin Hong
Norwegian University of Science and Technology, Trondheim, Norway
Jo̸rgen Amdahl
Norwegian University of Science and Technology, Trondheim, Norway
Paper No:
OMAE2008-57644, pp. 541-548; 8 pages
Published Online:
July 27, 2009
Citation
Hong, L, & Amdahl, J. "Plastic Behavior of Web Girders in Ship Collision and Grounding." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Estoril, Portugal. June 15–20, 2008. pp. 541-548. ASME. https://doi.org/10.1115/OMAE2008-57644
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