期刊
JOURNAL OF MARINE SCIENCE AND ENGINEERING
卷 10, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/jmse10040466
关键词
composite; cylindrical structure; non-linear finite element analysis; effective engineering constants; collapse strength
资金
- Pukyong National University Research Fund
This paper investigates the collapse behavior of submarine hulls under hydrostatic pressure loads and proposes a computational modeling approach. The accuracy of the numerical model is validated by comparing with experimental data. The effects of different material models and ply sequence parameters on collapse strength are examined, and the applicability of existing design codes is evaluated.
Submarine hulls are pressure vessels for which excellent structural integrity under underwater pressure loads is essential. The use of light-weight materials contributes to reduced fuel consumption, improved speed, and increased payload while strength properties are retained. The focus of this paper is on the collapse behavior of a filament-wound cylindrical structure that serves as the main hull of a submarine subject to hydrostatic pressure loads. This paper presents a computational modelling approach for the prediction of the collapse behavior mechanism using a commercial finite element (FE) solver. The collapse strength obtained from the numerical model corresponded closely to available experimental data. The composite and aluminum material models were compared and the effects of stacking angle and thickness portion in the ply sequence on collapse strength were investigated. The advantages and disadvantages of available design codes (i.e., American Society of Mechanical Engineers (ASME) BPVC-X and National Aeronautics and Space Administration (NASA) SP-8007) were reviewed by direct comparison with numerical results. It is concluded that the application of effective engineering constants for the prediction of the collapse pressure of submarine hulls may be feasible.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据