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

Cho, YS; Oh, DH; Paik, JK; (2019) An empirical formula for predicting the collapse strength of composite cylindrical-shell structures under external pressure loads. Ocean Engineering , 172 pp. 191-198. 10.1016/j.oceaneng.2018.11.028. Green open access

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Abstract

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 [±θ/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.

Type: Article
Title: An empirical formula for predicting the collapse strength of composite cylindrical-shell structures under external pressure loads
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.oceaneng.2018.11.028
Publisher version: https://doi.org/10.1016/j.oceaneng.2018.11.028
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Composites, Cylindrical-shell structure, Collapse strength, Filament-wound cylinder, External hydrostatic pressure load
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10065733
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