A study on effects of initial deflection on ultimate strength of ring-stiffened cylindrical structure under external hydrostatic pressure

被引：0

作者：

Kim, K ^{[1
]}

Kim, U ^{[1
]}

Park, J ^{[1
]}

机构：

[1] Hyundai Heavy Ind Co Ltd, Struct Res Dept, Ulsan, South Korea

来源：

PROCEEDINGS OF THE THIRTEENTH (2003) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 4 | 2003年

关键词：

ring-stiffened cylindrical shell; hydrostatic external pressure; ultimate strength; finite element analysis; test model; strain measurement; global buckling; local buckling; collapse load; initial deflection;

D O I：

暂无

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

In this paper, design formulae of local and global mode ultimate strength currently available are reviewed and evaluated based on the results of finite element analysis, considering their capabilities of accounting for effects of initial hull deflection and variation of hull thickness. As initial hull imperfection data, actual imperfections measured from two small-sized and a mid-sized test models are used. Strain data measured from the test model are discussed and compared with the results of the finite element analysis. Collapse pressures calculated from FEA are compared with those estimated from the ultimate, strength design formulae for cylindrical shells. Effects of the initial imperfection on the collapse pressure of stiffened cylindrical shells are also investigated.

引用

页码：415 / 422

页数：8

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