| Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid | |
Peng Q(彭青)1,2 ; Jin YR(靳宇然)1,2; Su XP3; Liu XM(刘小明)1,2; Wei YG4
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| Corresponding Author | Liu, X.(xiaomingliu@imech.ac.cn) |
| Source Publication | NUCLEAR ENGINEERING AND DESIGN
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| 2022-11-01 | |
| Volume | 398Pages:9 |
| ISSN | 0029-5493 |
| Abstract | In the reactor core, the ducts, submerged under fluid, are closely packed. As a result, the collision between ducts is inevitable during the seismic load. Understanding seismic response of the ducts needs to consider both the collision between ducts and the inertial effect from the surrounding fluid. For the collision model, we proposed a nonlinear contact model from a full scale simulation to consider the plastic effect during collision; For the fluid effect, we built an acoustic-structural model to obtain the added mass coefficient depending on the duct's location. Next, we integrated the effects from plastic collision and the fluid inertia into a beam model to study the seismic response of a 7-duct bundle, and then discussed the plastic effect on the contact forces, contact durations and duct acceleration. Results show that although contact plasticity hardly affects the ducts' motion, it has a noticeable effect on both contact force and contact energy dissipation. In addition, our result shows that the contact duration for one typical type of collisions tends to be constant. |
| Keyword | Nonlinear contact Plasticity Hexagonal bundle Earthquake Finite Element Method |
| DOI | 10.1016/j.nucengdes.2022.111987 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000868652100007 |
| WOS Keyword | ADDED-MASS ; CORE ; BEHAVIOR ; CODE |
| WOS Research Area | Nuclear Science & Technology |
| WOS Subject | Nuclear Science & Technology |
| Funding Project | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[12022210] ; National Natural Science Foundation of China[12032001] ; National Natural Science Foundation of China[11772334] ; Youth Innovation Promotion Association CAS[2018022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] |
| Funding Organization | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Liu, X. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90410 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 2.UCAS, Sch Engn Sci, Beijing 100049, Peoples R China; 3.China Inst Atom Energy, Beijing 102413, Peoples R China; 4.Peking Univ, Coll Engn, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Peng Q,Jin YR,Su XP,et al. Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid[J]. NUCLEAR ENGINEERING AND DESIGN,2022,398:9. |
| APA | 彭青,靳宇然,Su XP,刘小明,&Wei YG.(2022).Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid.NUCLEAR ENGINEERING AND DESIGN,398,9. |
| MLA | 彭青,et al."Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid".NUCLEAR ENGINEERING AND DESIGN 398(2022):9. |
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| Jp2022FA083_2022_Eff（5560KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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