Mechanics of adhesive contact on a power-law graded elastic half-space

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	Mechanics of adhesive contact on a power-law graded elastic half-space
	Chen SH(陈少华); Yan C(闫聪); Zhang P; Gao H
刊名	Journal of The Mechanics and Physics of Solids
	2009
通讯作者邮箱	chenshaohua72@hotmail.com; huajian_gao@brown.edu
卷号	57 期号:9 页码:1437-1448
ISSN号	0022-5096
通讯作者	陈少华 ; H. Gao
合作状况	国际
中文摘要	We consider adhesive contact between a rigid sphere of radius R and a graded elastic half-space with Young's modulus varying with depth according to a power law E = E-0(z/c(0))(k) (0 < k < 1) while Poisson's ratio v remaining a constant. Closed-form analytical solutions are established for the critical force, the critical radius of contact area and the critical interfacial stress at pull-off. We highlight that the pull-off force has a simple solution of P-cr= -(k+3)pi R Delta gamma/2 where Delta gamma is the work of adhesion and make further discussions with respect to three interesting limits: the classical JKR solution when k = 0, the Gibson solid when k --> 1 and v = 0.5, and the strength limit in which the interfacial stress reaches the theoretical strength of adhesion at pull-off. (C) 2009 Elsevier Ltd. All rights reserved.
学科主题	固体力学
类目[WOS]	Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter
研究领域[WOS]	Materials Science ; Mechanics ; Physics
关键词[WOS]	BIOMIMETIC FIBRILLAR INTERFACES ; RELEASABLE ADHESION ; SPHERES ; SURFACE ; GECKO ; MODEL ; CYLINDERS ; STRENGTH ; BEHAVIOR ; SOLIDS
收录类别	SCI
语种	英语
WOS记录号	WOS:000269430100001
公开日期	2009-12-24
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/28768]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Chen SH,Yan C,Zhang P,et al. Mechanics of adhesive contact on a power-law graded elastic half-space[J]. Journal of The Mechanics and Physics of Solids,2009,57(9):1437-1448.
APA	陈少华,闫聪,Zhang P,&Gao H.(2009).Mechanics of adhesive contact on a power-law graded elastic half-space.Journal of The Mechanics and Physics of Solids,57(9),1437-1448.
MLA	陈少华,et al."Mechanics of adhesive contact on a power-law graded elastic half-space".Journal of The Mechanics and Physics of Solids 57.9(2009):1437-1448.