Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid
文献类型：期刊论文
| 作者 | Penga, Q.3,4; Jina, Y.3,4; Suc, X. P.2; Liu, X.3,4 ; Weid, Y. G.1; Wei YG; Peng Q(彭青); Liu XM(刘小明); Jin YR(靳宇然)
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| 刊名 | NUCLEAR ENGINEERING AND DESIGN
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| 出版日期 | 2022-11-01 |
| 卷号 | 398页码:9 |
| 关键词 | Nonlinear contact Plasticity Hexagonal bundle Earthquake Finite Element Method |
| ISSN号 | 0029-5493 |
| DOI | 10.1016/j.nucengdes.2022.111987 |
| 通讯作者 | Liu, X.(xiaomingliu@imech.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | ADDED-MASS ; CORE ; BEHAVIOR ; CODE |
| 资助项目 | 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] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000868652100007 |
| 资助机构 | 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 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90409]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Liu, X. |
| 作者单位 | 1.Peking Univ, Coll Engn, Beijing 100871, Peoples R China 2.China Inst Atom Energy, Beijing 102413, Peoples R China 3.UCAS, Sch Engn Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Penga, Q.,Jina, Y.,Suc, X. P.,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 | Penga, Q..,Jina, Y..,Suc, X. P..,Liu, X..,Weid, Y. G..,...&靳宇然.(2022).Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid.NUCLEAR ENGINEERING AND DESIGN,398,9. |
| MLA | Penga, Q.,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. |
入库方式： OAI收割
来源：力学研究所
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