Implosion tests of aluminium-alloy ring-stiffened cylinders subjected to external hydrostatic pressure |
| |
| Institution: | 1. Shanghai Engineering Research Center of Marine Renewable Energy, College of Engineering Science and Technology, Shanghai Ocean University, Shanghai, 201306, China;2. State Key Laboratory of Ocean Engineering, School of Naval Architecture, Civil and Ocean Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China;3. Baoji Titanium Industry Co., Ltd., Baoji, 721014, China;1. School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China;2. Shanghai Engineering Research Center of Hadal Science and Technology, Shanghai Ocean University, Shanghai, 201306, China;3. Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology, Zhenjiang, 212003, China |
| |
| Abstract: | In this paper, the dynamic implosion responses of ring-stiffened cylindrical tubes under external hydrostatic pressure are reported. The ring-stiffened cylinder models were fabricated from commercial seamless aluminium-alloy 6061-T6 tubes. Six external stiffened models were constructed: three models with three stiffeners, and the other three with five stiffeners. To quantify the effects of stiffening on the structural behaviour, implosion tests were also performed on another three unstiffened tube models. In this study, a total of nine tube models were tested until their failure. Implosion was initiated by increasing the hydrostatic pressure in the chamber until the tubes collapsed, and the effects of different types of pressurising media were investigated: (i) water only and (ii) water and nitrogen gas combined. The implosion pressure pulse near the collapsing tube was recorded during the event. The models with five stiffeners increased the implosion pressure pulse by approximately 3.5 times compared with the unstiffened model. |
| |
| Keywords: | Experiment Implosion Ring-stiffened cylinders Aluminium-alloy 6061-T6 |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
