Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves

doi:10.1016/j.ijmecsci.2016.01.033

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-)

	Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves
	Wei YP(魏延鹏); Yang Z; Yan H; Guo YC; Wu XQ(吴先前); Huang CG(黄晨光); Wei, YP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
刊名	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
	2016
卷号	108 页码:49-60
关键词	Gradient Grooved Tube (Ggt) Proactive Regulation Progressive Buckling Half Wavelength Sectionalized Crushing Force
ISSN号	0020-7403
DOI	10.1016/j.ijmecsci.2016.01.033
产权排序	[Wei, Yanpeng; Yang, Zhe; Guo, Yacong; Wu, Xianqian; Huang, Chenguang] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; [Yan, He] Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China
文献子类	期刊论文
英文摘要	The progressive buckling behavior of a gradient grooved tube (GGT) designed for high temperature gas cooled reactor (HTR) is systematically studied in this paper. Based on the plastic hinge formation process, a sectionalized theoretical model is established to predict the quadratic upward trend of crushing force of GGT. The ordered and stable energy absorbing process of GGT is examined by low-speed axial impact using drop hammer test machine. The effect of proactive regulation parameters, including non dimensional groove width W/(h(0)+h), groove depth h(0)/h and half wavelength (H+W-h)/root Dh on buckling modes and force-displacement curve is determined by experiments and FE simulation. The non-dimensional groove width W/(h+h(0)) is determined as pi/2 according to the geometry coordination of bending grooves. The non-dimensional groove depth h(0)/h influences local buckling behavior and the critical value 0.6 for regular bending has been determined by numerical simulation. The quadratic trend force-displacement curves of GGT can be actively controlled by (H+W-h)/root Dh within a certain range less than 1.2. Free-fall impact experiments show that GGT has a better stability than perfect tube when used as an energy absorber to protect the graphite in HTR from slender control rod impact. (C) 2016 Elsevier Ltd. All rights reserved.
分类号	一类
URL标识	查看原文
WOS关键词	Gradient grooved tube (GGT) ; Proactive regulation ; Progressive buckling ; Half wavelength ; Sectionalized crushing force
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000373553700006
资助机构	The authors would like to thank the National Natural Science Foundation of China (Grant no. 11502274, 11002150, 11332011, 11402277) and the Basic Research Equipment Project of the Chinese Academy of Sciences (YZ200930) for financial support.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/59539]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
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.
推荐引用方式 GB/T 7714	Wei YP,Yang Z,Yan H,et al. Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2016,108:49-60.
APA	魏延鹏.,Yang Z.,Yan H.,Guo YC.,吴先前.,...&Wei, YP .(2016).Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,108,49-60.
MLA	魏延鹏,et al."Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 108(2016):49-60.