| A generalization of the Coulomb's friction law: From graphene to macroscale | |
Pugno NM; Yin QF(殷其放); Shi XH(施兴华) ; Capozza R; Pugno, NM (reprint author), Univ Trento, Dept Civil Environm & Mech Engn, Lab Bioinspired & Graphene Nanomech, Via Mesiano 77, I-38123 Trento, Italy.
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| Source Publication | MECCANICA
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| 2013-10 | |
| Volume | 48Issue:8Pages:1845-1851 |
| ISSN | 0025-6455 |
| Abstract | At the nanoscale, differently to what happens at the macroscale, friction even without an applied normal pressure and spontaneous adhesion take place. In particular, the nanotribology between two layers of graphene, or other two-dimensional nanomaterials (even curved, such as nanotube walls), remains controversial. It is sufficient to say that friction between two graphene layers or nanotube walls is described in the current literature giving as "material property" a constant friction force or a constant friction shear strength, even if such views are obviously mutually exclusive. Is friction dominated by a strength, by a force or by an energy? Coupling elasticity and energy balance we solve this paradox deriving a generalization of the celebrated Coulomb's friction law, reconciling the two current views. Molecular dynamics simulations on graphene are conducted to verify its validity at the nanoscale whereas statistical simulations confirm its validity even at the macroscale. |
| Keyword | Nanotribology Graphene Friction Molecular Dynamics |
| Subject Area | 固体力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000326889200004 |
| Funding Organization | European Research Council: ERC; Graphene Flaghship; National Natural Science Foundation of China (NSFC) [11023001] |
| Department | LNM微结构计算力学（筹） |
| Classification | 二类/Q1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47583 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Pugno, NM (reprint author), Univ Trento, Dept Civil Environm & Mech Engn, Lab Bioinspired & Graphene Nanomech, Via Mesiano 77, I-38123 Trento, Italy. |
| Recommended Citation GB/T 7714 | Pugno NM,Yin QF,Shi XH,et al. A generalization of the Coulomb's friction law: From graphene to macroscale[J]. MECCANICA,2013,48,8,:1845-1851. |
| APA | Pugno NM,殷其放,施兴华,Capozza R,&Pugno, NM .(2013).A generalization of the Coulomb's friction law: From graphene to macroscale.MECCANICA,48(8),1845-1851. |
| MLA | Pugno NM,et al."A generalization of the Coulomb's friction law: From graphene to macroscale".MECCANICA 48.8(2013):1845-1851. |
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