| Interference effect on friction behavior of asperities on single crystal copper | |
Liu XM(刘小明) ; Zhang B; Wei YG(魏悦广); Liu, XM (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
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| Source Publication | Tribology International
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| 2014-12 | |
| Volume | 81Issue:1Pages:169-178 |
| ISSN | 0301-679X |
| Abstract | By using Green function molecular dynamics method, we systematically study the friction behavior of a single asperity and asperity array over the (1 1 1) surface of single crystal copper. We find that internal plastic behavior (burst of stacking faults, dislocation emission and propagation) is a promising reason for the higher value of static friction coefficient than that of dynamics friction in non-adhesive scratch. For the rough surface, however, the difference between static and dynamic friction coefficients disappear due to the interference between asperities. The interference dramatically increases the friction coefficient by introducing atomic scale plastic features (pile-up atoms, stacking faults, and U-shape dislocation loop). (C) 2014 Elsevier Ltd. All rights reserved. |
| Keyword | Friction Transition Plastic Behavior Green Function Molecular Dynamics Asperity Interference |
| DOI | 10.1016/j.triboint.2014.08.007 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000345469200018 |
| WOS Keyword | MOLECULAR-DYNAMICS SIMULATIONS ; ATOMIC-SCALE ; CONTACT ; ROUGHNESS ; NANOSCALE |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Mechanical |
| Funding Organization | This work was supported by National Basic Research Program of China through 2012CB937500, and by the National Natural Science Foundation of China (Grant no.11202214, no. 91216108, no. 11372131), by State Key Laboratory of Mechanics and Control of Mechanical Structures(NUAA Grant no. MCMS-0114G01). Insightful discussions about applying Green function method with Prof. M.H. Muser and Prof. L.T. Kong are gratefully acknowledged. Authors thank Prof. Yujie Wei for useful comments. |
| Department | LNM新型材料及结构的多尺度力学 |
| Classification | 二类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/49458 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Liu, XM (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Liu XM,Zhang B,Wei YG,et al. Interference effect on friction behavior of asperities on single crystal copper[J]. Tribology International,2014,81,1,:169-178. |
| APA | Liu XM,Zhang B,Wei YG,&Liu, XM .(2014).Interference effect on friction behavior of asperities on single crystal copper.Tribology International,81(1),169-178. |
| MLA | Liu XM,et al."Interference effect on friction behavior of asperities on single crystal copper".Tribology International 81.1(2014):169-178. |
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| IMCAS-J2014-339.pdf（3235KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-ND | View Download | |
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