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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.
Source PublicationVACUUM
2011
Volume85Issue:9Pages:898-903
ISSN0042-207X
AbstractIn 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.
KeywordContact Mechanics Finite Element Simulation Indentation Contact Geometry
DOI10.1016/j.vacuum.2011.01.007
Indexed BySCI ; EI
Language英语
WOS IDWOS:000289181700010
WOS KeywordFORCE-DISPLACEMENT MODEL ; SIMILARITY ANALYSIS ; ROUGH SURFACES ; RIGID FLAT ; INDENTATION ; HARDNESS ; SPHERES
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationNational Science Foundation of China [10772183] ; Chinese Academy of Sciences [KJCX2-YW-L07]
DepartmentLMFS海洋环境与工程(LEM)
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58589
Collection环境力学重点实验室(2009-2011)
Corresponding AuthorChen, WM (reprint author), CAS, Inst Mech, Lab Environm Mech, Beijing 100190, Peoples R China.
Recommended Citation
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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