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Ultimate Longitudinal Strength Assessment of Ships' Hull Girders  

Lee, Hun-Gon (Department of Hull Initial Design, Division of Shipbuilding, Hyundai Heavy Industries)
Lee, Joo-Sung (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
Journal of Ship and Ocean Technology / v.12, no.1, 2008 , pp. 45-56 More about this Journal
Abstract
Recently, International Association Classification Societies (IACS) has adopted the Common Structural Rules (CSR) for Bulk Carriers and Tankers, which specifies the requirement associated with the ultimate strength of hull girder structure. The theoretical background and the results of verification study are neither well summarized nor released. Furthermore, the requirement is not a form of deterministic formula but a form of program in which source code is not disclosed. The reliability of the non-linear structural analysis program is verified through the comparison with the results of the analysis and the model test. Then, the reliability of the ultimate strength requirement in CSR is checked by comparing with the results of rigorous non-linear analysis.
Keywords
common structural rules; hull girder; non-linear finite element analysis; simplified ultimate hull strength formula; ultimate longitudinal strength;
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