Analysis on Elastic-Plastic Spherical Contact and Its Deformation Regimes, the One Parameter Regime and Two Parameter Regime, By Finite Element Simulation

doi:10.1016/j.vacuum.2011.01.007

IMECH-IR > 环境力学重点实验室(2009-2011)

	Analysis on Elastic-Plastic Spherical Contact and Its Deformation Regimes, the One Parameter Regime and Two Parameter Regime, By Finite Element Simulation
	Chen WM(陈伟民); Li M(李敏); Zheng YZ(郑仰泽); Chen, WM (reprint author), CAS, Inst Mech, Lab Environm Mech, Beijing 100190, Peoples R China.
发表期刊	VACUUM
	2011
卷号	85 期号:9 页码:898-903
ISSN	0042-207X
摘要	In this paper the contact problem of a rigid sphere against an elastic plastic sphere and a spherical elastic plastic cavity is studied by means of finite element simulation for a wide range of radius ratios. Our results indicate that the deformation range naturally divides into two regimes, i.e. a one parameter regime (covering the elastic, small elastic plastic and similarity deformation) and a two parameter regime (covering the finite deformation). In these two regimes average contact pressures (as well as contact area) versus indentation depth can be described respectively by the single parameter, i.e. indentation depth h/R(e), and the two parameters, i.e. h/R(e) and radius ratio R(1)/R(2). Moreover, the variation trends of average contact pressure with the increase of indentation depth differ markedly in different deformation regimes. The numerical evolution of pressure distribution indicates that with increase of indentation depth the pressure distribution becomes more peaked at the center of the contact area meanwhile the maximum contact pressure, limited by the flow stress, increases slightly. Therefore in the two parameter regime, the average pressure would stop growing and get lower rather than continuously higher as it does in the one parameter regime. (C) 2011 Elsevier Ltd. All rights reserved.
关键词	Contact Mechanics Finite Element Simulation Indentation Contact Geometry
DOI	10.1016/j.vacuum.2011.01.007
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000289181700010
关键词[WOS]	FORCE-DISPLACEMENT MODEL ; SIMILARITY ANALYSIS ; ROUGH SURFACES ; RIGID FLAT ; INDENTATION ; HARDNESS ; SPHERES
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
项目资助者	National Science Foundation of China [10772183] ; Chinese Academy of Sciences [KJCX2-YW-L07]
课题组名称	LMFS海洋环境与工程(LEM)
论文分区	二类
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58589
专题	环境力学重点实验室(2009-2011)
通讯作者	Chen, WM (reprint author), CAS, Inst Mech, Lab Environm Mech, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Chen WM,Li M,Zheng YZ,et al. Analysis on Elastic-Plastic Spherical Contact and Its Deformation Regimes, the One Parameter Regime and Two Parameter Regime, By Finite Element Simulation[J]. VACUUM,2011,85,9,:898-903.
APA	陈伟民,李敏,郑仰泽,&Chen, WM .(2011).Analysis on Elastic-Plastic Spherical Contact and Its Deformation Regimes, the One Parameter Regime and Two Parameter Regime, By Finite Element Simulation.VACUUM,85(9),898-903.
MLA	陈伟民,et al."Analysis on Elastic-Plastic Spherical Contact and Its Deformation Regimes, the One Parameter Regime and Two Parameter Regime, By Finite Element Simulation".VACUUM 85.9(2011):898-903.

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