| Compressive creep behavior of spherical pressure hull scale model for full-ocean-depth manned submersible | |
| Wang, Lei1,2,3; Li, Yanqing1,2,3; Sun, Chengqi4,5; Qiu, Jianke6; Huang, Jinhao1,2,3; Jiang, Xuyin1,2,3; Sun, Zhijie7; Wan, Zhengquan1,2,3 | |
| Corresponding Author | Wang, Lei(wanglei@cssrc.com.cn) |
| 2022-12-15 | |
| Source Publication | OCEAN ENGINEERING
 |
| ISSN | 0029-8018 |
| Volume | 266Pages:11 |
| Abstract | The phenomenon of room temperature creep in titanium alloys has drawn great attention for decades. With the increasing application of titanium alloys to the manned submersible pressure hull, the traditional calculation and analysis based on strength and stability cannot meet the requirement of structure design and safety evaluation for the spherical pressure hull completely. In this paper, a series of compressive creep tests were performed to reveal the change rule and distribution characteristics for creep behavior of the spherical pressure hull model. Results show that there is no measurable creep strain for pressure hull under maximum operating pressure and steadystate creep appeared in high stress areas of the pressure hull under 1.25 times maximum operating pressure, with the characteristics of internal creep strain and strain rate being greater than the external counterparts. The stress threshold value of the pressure hull model for steady-state creep is 853.7 MPa (equivalent to 0.88Rp0.2), and a creep constitutive equation is proposed based on improved Norton power law model. The results of this paper can provide support for the safety assessment and optimization design of manned submersibles for long-term service. |
| Keyword | Full -ocean -depth manned submersible Titanium alloy Pressure hull Compressive creep behavior Creep constitutive equation |
| Funding Organization | National Key Research and Development Program of China |
| DOI | 10.1016/j.oceaneng.2022.112831 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China ; [2017YFC0305500] ; [2021YFC2802300] |
| WOS Research Area | Engineering ; Oceanography |
| WOS Subject | Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography |
| WOS ID | WOS:000877464200002 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/176440 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Lei |
| Affiliation | 1.China Ship Sci Res Ctr, Wuxi 214082, Peoples R China 2.State Key Lab Deep Sea Manned Vehicles, Wuxi 214082, Peoples R China 3.Taihu Lab Deepsea Technol Sci, Wuxi 214082, Peoples R China 4.Inst Mech, Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 7.Luoyang Ship Mat Res Inst, Luoyang 471023, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Lei,Li, Yanqing,Sun, Chengqi,et al. Compressive creep behavior of spherical pressure hull scale model for full-ocean-depth manned submersible[J]. OCEAN ENGINEERING,2022,266:11. |
| APA | Wang, Lei.,Li, Yanqing.,Sun, Chengqi.,Qiu, Jianke.,Huang, Jinhao.,...&Wan, Zhengquan.(2022).Compressive creep behavior of spherical pressure hull scale model for full-ocean-depth manned submersible.OCEAN ENGINEERING,266,11. |
| MLA | Wang, Lei,et al."Compressive creep behavior of spherical pressure hull scale model for full-ocean-depth manned submersible".OCEAN ENGINEERING 266(2022):11. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment