Buckling of longan-shaped shells under external pressure

被引:25
|
作者
Zhang, J. [1 ]
Wang, W. M. [1 ]
Cui, W. C. [2 ]
Tang, W. X. [3 ]
Wang, F. [2 ]
Chen, Y. [3 ]
机构
[1] Jiangsu Univ Sci & Technol, Sch Mech Engn, Zhenjiang 212003, Peoples R China
[2] Shanghai Ocean Univ, Shanghai Engn Res Ctr Nadal Sci & Technol, Shanghai 201306, Peoples R China
[3] Jiangsu Univ Sci & Technol, Jiangsu Prov Key Lab Adv Mfg Marine Mech Equipmen, Zhenjiang 212003, Peoples R China
基金
中国国家自然科学基金;
关键词
Shell of revolution; Dried longan; Buckling behaviour; Collapse pressure; SPHERICAL-SHELLS; BARRELED SHELLS; STABILITY; STRENGTH;
D O I
10.1016/j.marstruc.2018.04.002
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 carries out an experimental and numerical study on the buckling behavior of a biologically evolving longan-shaped shell under external pressure. Such a shape, following Cassini oval formula, is determined based on the measurements of 171 actual dried longan shells. On this basis, three nominally identical longan-shaped shells with the shape index of 0.11 are fabricated using stamping and welding process, measured for geometry, slowly tested to destruction, and numerically evaluated for their buckling behaviour. A good agreement between experiments and numerical evaluations is obtained.
引用
收藏
页码:218 / 225
页数:8
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