Evaluation of ultimate strength of stiffened panels under longitudinal thrust

Marine Structures 36 巻 21-50 頁 2014-01-24 発行
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タイトル ( eng )
Evaluation of ultimate strength of stiffened panels under longitudinal thrust
作成者
Yanagihara Daisuke
Yasuoka Aya
Harada Minoru
Fujikubo Masahiko
Yao Tetsuya
収録物名
Marine Structures
36
開始ページ 21
終了ページ 50
抄録
A series of collapse analyses is performed applying nonlinear FEM on stiffened panels subjected to longitudinal thrust. MSC.Marc is used. Numbers, types and sizes of stiffeners are varied and so slenderness ratio as well as aspect ratio of local panels partitioned by stiffeners keeping the spacing between adjacent longitudinal stiffeners the same. Initial deflection of a thin-horse mode is imposed on local panels and that of flexural buckling and tripping modes on stiffeners to represent actual initial deflection in stiffened panels in ship structures. On the basis of the calculated results, buckling/plastic collapse behaviour of stiffened panels under longitudinal thrust is investigated. The calculated ultimate strength are compared with those obtained by applying several existing methods such as CSR for bulk carriers and PULS. Simple formulas for stiffened panels, of which collapse is dominated fundamentally by the collapse of local panels between longitudinal stiffeners, are also examined if they accurately estimate the ultimate strength. Through comparison of the estimated results with the FEM results, it has been concluded that PULS and modified FYH formulas fundamentally give good estimation of the ultimate strength of stiffened panels under longitudinal thrust.
著者キーワード
Stiffened panels
Longitudinal thrust
Buckling/plastic collapse
Ultimate strength
Nonlinear FEM analyses
Simple formulas
CSR-B
PULS
言語
英語
資源タイプ 学術雑誌論文
出版者
Elsevier
発行日 2014-01-24
権利情報
© <2014>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version.
この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
出版タイプ Accepted Manuscript(出版雑誌の一論文として受付されたもの。内容とレイアウトは出版社の投稿様式に沿ったもの)
アクセス権 オープンアクセス
収録物識別子
[DOI] https://doi.org/10.1016/j.marstruc.2013.11.002 ~の異版である
助成機関名
日本学術振興会
Japan Society for the Promotion of Science
助成機関識別子
[Crossref Funder] https://doi.org/10.13039/501100001691
研究課題名
極限海象下における船体構造の崩壊解析に関する研究
Collapse Analysis of ship structure under extreme sea states
研究課題番号
21760668