| 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; H. Gao
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| Source Publication | Journal of The Mechanics and Physics of Solids
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| 2009 | |
| Volume | 57Issue:9Pages:1437-1448 |
| ISSN | 0022-5096 |
| Abstract | 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. |
| Subject Area | 固体力学 |
| DOI | 10.1016/j.jmps.2009.06.006 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000269430100001 |
| WOS Keyword | BIOMIMETIC FIBRILLAR INTERFACES ; RELEASABLE ADHESION ; SPHERES ; SURFACE ; GECKO ; MODEL ; CYLINDERS ; STRENGTH ; BEHAVIOR ; SOLIDS |
| WOS Research Area | Materials Science ; Mechanics ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/28768 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Chen SH(陈少华); H. Gao |
| Recommended Citation 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,&H. Gao.(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. |
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