|
|
||
|
|
|
|
FROM:
Jian Zhang (1,2), Benyi Zhu (1), Fang Wang (3), Wenxian Tang (1), Weibo Wang (2) and Meng Zhang (1)
(1) Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
(2) Chinese Ship Scientific Research Center, Wuxi, Jiangsu 214082, China
(3) Shanghai Ocean University, Shanghai 201306, China
“Buckling of prolate egg-shaped domes under hydrostatic external pressure”, Thin-Walled Structures, Vol. 119, pp 296-303, October 2017, https://doi.org/10.1016/j.tws.2017.06.022
ABSTRACT: This study investigated the buckling of nontypical prolate domes subject to hydrostatic external pressure. The domes were shells of revolution with an egg-shaped configuration, with a base diameter and height of approximately 160 and 121 mm, respectively. Four laboratory-scale egg-shaped domes, cold-pressed from a 1-mm 304 steel sheet, were measured for geometry, tested to collapse, and analysed numerically. The experimental results and numerical evaluations were well consistent. Furthermore, the buckling behaviours of a perfect egg-shaped dome, a capacity-equivalent hemisphere, and a mass-equivalent hemisphere were numerically studied. The results indicate that the prolate egg-shaped dome has a relatively large load-carrying capacity that is not highly sensitive to material plasticity and geometrical imperfections.
Page 199 / 256