An empirical formula for predicting the collapse strength of composite cylindrical-shell structures under external pressure loads

被引：42

作者：

Cho, Yoon Sik ^{[1
,2
]}

Oh, Do Han ^{[3
]}

Paik, Jeom Kee ^{[2
,4
,5
]}

机构：

[1] Agcy Def Dev, Daejeon 34186, South Korea

[2] Pusan Natl Univ, Dept Naval Architecture & Ocean Engn, Busan 46241, South Korea

[3] Univ Strathclyde, Dept Naval Architecture Ocean & Marine Engn, Glasgow G11 XQ, Lanark, Scotland

[4] Lloyds Register Fdn Res Ctr Excellence, Int Ctr Adv Safety Studies, Busan 46241, South Korea

[5] UCL, Dept Mech Engn, London WC1E 7JE, England

来源：

OCEAN ENGINEERING | 2019年 / 172卷

关键词：

Composites; Cylindrical-shell structure; Collapse strength; Filament-wound cylinder; External hydrostatic pressure load; NONLINEAR-ANALYSIS; CYLINDERS; DESIGN;

D O I：

10.1016/j.oceaneng.2018.11.028

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：

This paper derives an empirical formula for predicting the collapse strength of composite cylindrical-shell structures under external hydrostatic pressure loads as a function of geometric dimensions and layered angles, where the effects of initial manufacturing imperfections are implicitly taken into account. A series of experiments are undertaken on [+/-theta/90] (FW) filament-wound-type composite cylindrical-shell models subjected to collapse pressure loads. A total of 20 composite cylindrical-shell models are tested to derive the empirical formula, which is validated by comparison with experimental data, existing design formulas of ASME 2007 and NASA SP-8700, and solutions of the nonlinear finite element method. It is concluded that the proposed formula accurately predicts the collapse pressure loads of filament-wound composite cylinders and will thus aid the safety design of composite cylindrical shell-structures under external pressure loads.

引用

页码：191 / 198

页数：8

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