Load-carrying capacity of cylindrical shells with axisymmetric initial imperfections under hydrostatic pressure

被引：0
作者：
Bai, Xu [1 ]
Yue, Zhi-Bin [1 ]
Li, Jin-Hua [2 ]
Wang, Xiao-Tian [3 ]
机构：
[1] School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang
[2] Institute of Oceanographic Instrument Shandong Academy of Sciences, Qingdao
[3] College of Shipbuilding Engineering, Harbin Engineering University, Harbin
来源：
Chuan Bo Li Xue/Journal of Ship Mechanics | 2015年 / 19卷 / 11期
关键词：
Cylindrical shells; Hydrostatic pressure; Initial imperfections; Reduced stiffness;
D O I：
10.3969/j.issn.1007-7294.2015.11.006
中图分类号：
学科分类号：
摘要：
This paper studies the stability load-carrying capacity of cylindrical shells with axisymmetric initial imperfections and local dents. The effects of amplitude, the ratio of radius and thickness, the length of shells and local dents and the position of dents on the critical buckling pressure of cylindrical shells under hydrostatic pressure are given out with numerical calculation method. And to reduce the stiffness of cylindrical shells to different amplitudes of the imperfections is made and the relation between the amplitudes and coefficient of reduced stiffness is obtained. The results indicate that the essence of the effects of axisymmetric initial imperfections on the load-carrying of cylindrical shells is that the imperfections induce the axial bending stiffness reduced and decrease the stability load-carrying of cylindrical shells. Therefore, the stringer stiffener can increase the bending stiffness and improve the load-carrying capacity of cylindrical shells with axisymmetric initial imperfections. © 2015, China Ship Scientific Research Center. All right reserved.
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页码：1334 / 1343
页数：9
相关论文
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