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Experimental and numerical studies on the collapse of Titanium alloy ring-stiffened cylinder

文献类型：期刊论文

作者Zhang, Bowen3; Zhao, Yu2; Zhang, Junfeng1; Zhang, Aifeng3; Wan, Zhengquan3; Zhang JF(张均锋)
刊名ENGINEERING FAILURE ANALYSIS
出版日期2025
卷号167页码:14
关键词Titanium alloy Ring-stiffened cylinder Hydrostatic pressure test Collapse Plastic bifurcation
ISSN号1350-6307
DOI10.1016/j.engfailanal.2024.108928
通讯作者Zhao, Yu(yuzhao2021@tju.edu.cn) ; Zhang, Junfeng(zhangjf@imech.ac.cn)
英文摘要This paper investigates the collapse of ring-stiffened Titanium alloy cylinders used for subsea resource exploration under hydrostatic pressure through experimental and numerical methods. Extensive material tests were first conducted on Titanium alloy specimens to obtain the fundamental mechanical properties and variation characteristics. Then, a 4236 mm-long test cylinder was fabricated with an inner radius of 650 mm and a thickness (ts) of 18.85 mm. The initial geometric imperfection was measured at evenly-spaced positions in the axial direction and 48 locations around the circumference by dial gauges. Afterward, the test cylinder was transferred into a custom hyperbaric pressure vessel and pressurized to collapse. As to the numerical analysis, a user-defined material subroutine implementing the incremental J2 deformation theory was developed to predict plastic bifurcation pressure. Moreover, a nonlinear finite element (FE) model, which incorporated the measured geometric imperfection and material nonlinearity, was used to reproduce the experiment. The numerical results were found to exhibit reasonably good agreement with the test data. In addition, parametric studies were conducted regarding material properties, geometric parameters, and imperfection sizes on the load-carrying capacity of Titanium alloy ring-stiffened cylinders.
WOS关键词CIRCULAR TOROIDAL SHELL ; ULTIMATE STRENGTH ; CYLINDRICAL-SHELLS ; DESIGN
资助项目National Key Research and Development Program of China[LQ-GJ-02]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:001332910200001
资助机构National Key Research and Development Program of China
源URL[http://dspace.imech.ac.cn/handle/311007/96984]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者Zhao, Yu; Zhang, Junfeng
作者单位1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
2.Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China
3.China Ship Sci Res Ctr, Wuxi 214082, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Bowen,Zhao, Yu,Zhang, Junfeng,et al. Experimental and numerical studies on the collapse of Titanium alloy ring-stiffened cylinder[J]. ENGINEERING FAILURE ANALYSIS,2025,167:14.
APA Zhang, Bowen,Zhao, Yu,Zhang, Junfeng,Zhang, Aifeng,Wan, Zhengquan,&张均锋.(2025).Experimental and numerical studies on the collapse of Titanium alloy ring-stiffened cylinder.ENGINEERING FAILURE ANALYSIS,167,14.
MLA Zhang, Bowen,et al."Experimental and numerical studies on the collapse of Titanium alloy ring-stiffened cylinder".ENGINEERING FAILURE ANALYSIS 167(2025):14.

入库方式： OAI收割

来源：力学研究所

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