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首页> 外文期刊>International Journal of Naval Architecture and Ocean Engineering >Ultimate strength of simply supported plate with opening under uniaxial compression
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Ultimate strength of simply supported plate with opening under uniaxial compression

机译：单轴压缩下带开口的简支板的极限强度

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ABSTRACT Unstiffened plates are integral part of all kinds of structures such as ship and offshore oil platforms. Openings are unavoidable and absolutely reduce the ultimate strength of structures. In this study, the finite element analysis package, ABAQUS, is used to analyze the behavior of unstiffened plate with rectangular opening. The rectangular opening form is divided into two cases. In case1, opening depth is constant, but opening width is varied. Meanwhile, in case2 opening width is fixed and opening depth is varied. Besides, for the two different form opening, the effect of plate slenderness parameter (β), opening area ratio (AR) and opening position ratio (PR) on the ultimate strength of plate with opening under axial compression are presented. It has been found that the ultimate strength of plate ofcase1is much more sensitive to the plate slenderness parameter (β) and opening area ratio (AR) than that of case2. However, for case1, opening position (PR) almost has no effect on the ultimate strength, whereas, regardingcase2, the influence of opening position (PR) depends on the plate slenderness parameter (β). Based on nonlinear regression analysis, three design formulae are not only developed butalso approved reasonably for the practical engineering design.
机译：摘要未加筋板是各种结构（如船舶和海上石油平台）的组成部分。开口是不可避免的，绝对会降低结构的极限强度。在这项研究中，使用有限元分析软件包ABAQUS来分析具有矩形开口的未加筋板的性能。矩形开口形式分为两种情况。在情况1中，开口深度是恒定的，但是开口宽度是变化的。同时，在情况2中，开口宽度是固定的并且开口深度是变化的。此外，针对两种不同形式的开孔，提出了板细长参数（β），开孔面积比（AR）和开孔位置比（PR）对轴向压缩开孔板的极限强度的影响。已经发现，情况1的板的极限强度比情况2对板的伸长率参数（β）和开口面积比（AR）敏感得多。但是，对于情况1，打开位置（PR）对极限强度几乎没有影响，而对于情况2，打开位置（PR）的影响取决于板的细长参数（β）。基于非线性回归分析，不仅开发了三个设计公式，而且合理地批准了三个设计公式用于实际工程设计。

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