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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.
Source PublicationMECCANICA
2013-10
Volume48Issue:8Pages:1845-1851
ISSN0025-6455
AbstractAt 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.
KeywordNanotribology Graphene Friction Molecular Dynamics
Subject Area固体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000326889200004
Funding OrganizationEuropean Research Council: ERC; Graphene Flaghship; National Natural Science Foundation of China (NSFC) [11023001]
DepartmentLNM微结构计算力学(筹)
Classification二类/Q1
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47583
Collection非线性力学国家重点实验室
Corresponding AuthorPugno, 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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