2010 Fiscal Year Final Research Report
Ultimate strength of ship structure and its uncertainty model
| Project/Area Number |
20246126
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Osaka University |
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Principal Investigator |
FUJIKUBO Masahiko Osaka University, 工学研究科, 教授 (30156848)
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| Co-Investigator(Kenkyū-buntansha) |
IIJIMA Kazuhiro 大阪大学, 工学研究科, 講師 (50302758)
OKAZAWA Shigenobu 広島大学, 工学研究科, 准教授 (10312620)
YANAGIHARA Daisuke 愛媛大学, 理工学研究科, 准教授 (10294539)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 船体構造 / 最終強度 / 不確定性 / 損傷 / リスク解析 |
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| Research Abstract |
The ultimate strength of ship structures in the damaged as well as intact condition is studied including the uncertainty in the strength. The following achievements were made: (1) The ultimate strength of a continuous stiffened panel with crack damage under combined thrust and lateral pressure were investigated ; (2) The model uncertainty in the prediction of the ultimate longitudinal bending strength of a hull girder using Smith method was quantified ; (3) The Smith method was extended to be applied to the cross section with damages ; (4) ISUM system for the efficient analysis of the ultimate strength of a ship structure with and without damages were developed ; (5) A dynamical model to predict the collapse behavior of a ship hull girder considering the interaction between plastic deformation and fluid forcse was developed and verified by the tank test.
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