Effect of contact plasticity on the seismic response of a 7-duct bundle immersed in fluid

doi:10.1016/j.nucengdes.2022.111987

IMECH-IR > 非线性力学国家重点实验室

	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 XP 3; Liu XM(刘小明)1,2 ; Wei YG4
通讯作者	Liu, X.(xiaomingliu@imech.ac.cn)
发表期刊	NUCLEAR ENGINEERING AND DESIGN
	2022-11-01
卷号	398 页码:9
ISSN	0029-5493
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.
关键词	Nonlinear contact Plasticity Hexagonal bundle Earthquake Finite Element Method
DOI	10.1016/j.nucengdes.2022.111987
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000868652100007
关键词[WOS]	ADDED-MASS ; CORE ; BEHAVIOR ; CODE
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
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]
项目资助者	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
论文分区	二类
力学所作者排名	1
RpAuthor	Liu, X.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90410
专题	非线性力学国家重点实验室
作者单位	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
推荐引用方式 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.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp2022FA083_2022_Eff（5560KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文