Knowledge Management System of Institue of Mechanics, CAS
Hybrid Atomistic-Coarse-Grained Treatment of Thin-Film Lubrication II | |
Wu ZB(武作兵); Diestler DJ; Feng R; Zeng XC | |
发表期刊 | Journal of Chemical Physics |
2004 | |
卷号 | 121期号:16页码:8029-8038 |
ISSN | 0021-9606 |
摘要 | A new hybrid atomistic-coarse-grained ~HACG! treatment of reversible processes in multiple-scale systems involving fluid-solid interfaces was tested through isothermal-isobaric Monte Carlo simulations of the quasistatic shearing of a model two-dimensional lubricated contact comprising two planar Lennard-Jones solid substrates that sandwich a softer Lennard-Jones film. Shear-stress profiles ~plots of shear stress Tyx versus lateral displacement of the substrates! obtained by the HACG technique, which combines an atomistic description of the interfacial region with a continuum description of regions well removed from the interface, are compared with ‘‘exact’’ profiles ~obtained by treating the whole system at the atomic scale! for a selection of thermodynamic states that correspond to systematic variations of temperature, load ~normal stress!, film-substrate coupling strength, and film thickness. The HACG profiles are in excellent agreement overall with the exact ones. The HACG scheme provides a reliable description of quasistatic shearing under a wide range of conditions. It is demonstrated that the elastic response of the remote regions of the substrates can have a significant impact on the static friction profile ~plot of maximum magnitude of Tyx versus load! |
学科领域 | 力学 |
DOI | 10.1063/1.1792154 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000224456500057 |
WOS研究方向 | Physics |
WOS类目 | Physics, Atomic, Molecular & Chemical |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/15365 |
专题 | 力学所知识产出(1956-2008) |
推荐引用方式 GB/T 7714 | Wu ZB,Diestler DJ,Feng R,et al. Hybrid Atomistic-Coarse-Grained Treatment of Thin-Film Lubrication II[J]. Journal of Chemical Physics,2004,121,16,:8029-8038. |
APA | 武作兵,Diestler DJ,Feng R,&Zeng XC.(2004).Hybrid Atomistic-Coarse-Grained Treatment of Thin-Film Lubrication II.Journal of Chemical Physics,121(16),8029-8038. |
MLA | 武作兵,et al."Hybrid Atomistic-Coarse-Grained Treatment of Thin-Film Lubrication II".Journal of Chemical Physics 121.16(2004):8029-8038. |
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