Experimental investigation on compressive dwell fatigue behavior of titanium alloy pressure hull for deep-sea manned submersibles
文献类型：期刊论文
| 作者 | Wang, Lei5,6,7; Ye, Cong4,5,7; Sun, Chengqi2,3 ; Feng, Shichao5,7; Xie, Xiaozhong6,7; Gao, Yuan6,7; Zhao, Kun1; Li, Yanqing5,6,7; Wan, Zhengquan4; Sun CQ(孙成奇)
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| 刊名 | OCEAN ENGINEERING
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| 出版日期 | 2024-07-01 |
| 卷号 | 303页码:14 |
| 关键词 | Compressive dwell fatigue Pressure hull Deep-sea manned submersible Time -dependent strain accumulation Titanium alloy |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2024.117646 |
| 通讯作者 | Ye, Cong(yec@vip.163.com) |
| 英文摘要 | The spherical pressure hull of deep-sea manned submersible is subjected to the alternating load with high dwell pressure during the cyclic working state of diving, operating and rising. Therefore, the compressive dwell fatigue behavior is a key factor to be considered in the structural safety evaluation of the pressure hull for manned submersibles. In this paper, a structure -grade dwell fatigue test of the pressure hull and a variety of specimengrade compressive dwell fatigue tests were performed for Ti - 6Al - 4V ELI and Ti - 6Al - 2Sn - 2Zr - 3Mo-X alloys. Results show that no obvious structural deformation occurs in the spherical hull after the dwell fatigue test and no detectable out -of -standard defect is found in the welds when the dwell pressure value is the maximum operating pressure. The cumulative compressive strains of dwell fatigue specimens show that the base metal and welding joint have undergone plastic deformation when the maximum compressive stress value is 0.9 R p0.2 . No microcracks or changes in the microstructure characteristics are observed in the specimens. The present results support the structural design and safety assessment of deep-sea manned submersibles for long-term service. |
| WOS关键词 | MICROSTRUCTURE ; TIME |
| 资助项目 | National Key Research and Development Program of China[2021YFC2802302] ; National Key Research and Development Program of China[2017YFC0305501] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001227765200001 |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95396]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Ye, Cong |
| 作者单位 | 1.Baoji Titanium Ind Co Ltd, Baoji 721014, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.Taihu Lab Deepsea Technol Sci, Wuxi 214082, Peoples R China 5.State Key Lab Deep Sea Manned Vehicles, Wuxi 214082, Peoples R China 6.Natl Key Lab Ship Vibrat & Noise, Wuxi 214082, Peoples R China 7.China Ship Sci Res Ctr, Wuxi 214082, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Lei,Ye, Cong,Sun, Chengqi,et al. Experimental investigation on compressive dwell fatigue behavior of titanium alloy pressure hull for deep-sea manned submersibles[J]. OCEAN ENGINEERING,2024,303:14. |
| APA | Wang, Lei.,Ye, Cong.,Sun, Chengqi.,Feng, Shichao.,Xie, Xiaozhong.,...&孙成奇.(2024).Experimental investigation on compressive dwell fatigue behavior of titanium alloy pressure hull for deep-sea manned submersibles.OCEAN ENGINEERING,303,14. |
| MLA | Wang, Lei,et al."Experimental investigation on compressive dwell fatigue behavior of titanium alloy pressure hull for deep-sea manned submersibles".OCEAN ENGINEERING 303(2024):14. |
入库方式： OAI收割
来源：力学研究所
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