Experimental and numerical study of circular, stainless thin tube energy absorber under axial impact by a control rod

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Experimental and numerical study of circular, stainless thin tube energy absorber under axial impact by a control rod
	Yang Z; Yan H; Huang CG(黄晨光); Diao, XZ; Wu XQ(吴先前); Wang, SH; Lu LL(路玲玲); Liao LJ(廖丽娟); Wei YP(魏延鹏); Liao LJ(廖丽涓)
刊名	Thin-Walled Structures
	2014-09
通讯作者邮箱	Huangcg@imech.ac.cn; weiyanpeng@imech.ac.cn
卷号	82 页码:24-32
关键词	Circular thin tube Energy absorber Progressive buckling Axial impact Strain rate Interfacial pressure
ISSN号	0263-8231
通讯作者	Wei, YP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
产权排序	[Yang, Zhe; Huang, Chenguang; Wu, Xianqian; Lu, Lingling; Liao, Lijuan; Wei, Yanpeng] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; [Yan, He; Diao, Xingzhong; Wang, Shaohua] Tsinghua Univ, Minist Educ, Key Lab Adv Reactor Engn & Safety, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
中文摘要	In this study, several crashworthiness parameters of a circular, thin tube energy-absorbing structure, which is used in a high-temperature, gas-cooled reactor (HTR), are studied experimentally and numerically at various tube thicknesses, temperatures and impact velocities. The average crushing force is fundamentally dependent on strain hardening, strain rate hardening, and, particularly, temperature softening of the material. The peak forces during buckling are significantly affected by the local strain rate in the material and exhibit a decreasing trend in sequentially formed folds. Reducing the tube thickness is an effective method to weaken the average crushing force, but it does not weaken the maximum crushing force. Additionally, the stress concentration at the edge of the backplate-graphite contact surface is evaluated in detail to ensure the structural security of the energy absorber. (C) 2014 Elsevier Ltd. All rights reserved.
分类号	二类
收录类别	SCI ; EI
资助信息	This work is supported by National S&T Major Project (Grant no. 2008ZX06902-005).
原文出处	http://dx.doi.org/10.1016/j.tws.2014.03.020
语种	英语
WOS记录号	WOS:000339693300003
公开日期	2014-09-03
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49037]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Yang Z,Yan H,Huang CG,et al. Experimental and numerical study of circular, stainless thin tube energy absorber under axial impact by a control rod[J]. Thin-Walled Structures,2014,82:24-32.
APA	Yang Z.,Yan H.,Huang CG.,Diao, XZ.,Wu XQ.,...&Liao LJ.(2014).Experimental and numerical study of circular, stainless thin tube energy absorber under axial impact by a control rod.Thin-Walled Structures,82,24-32.
MLA	Yang Z,et al."Experimental and numerical study of circular, stainless thin tube energy absorber under axial impact by a control rod".Thin-Walled Structures 82(2014):24-32.