Understanding topographic dependence of friction with micro- and nano-grooved surfaces

Chengjiao Yu; Hualong Yu; Geng Liu; Wei Chen; Bo He; Q. Jane Wang

doi:10.1007/s11249-013-0252-5

Understanding topographic dependence of friction with micro- and nano-grooved surfaces

Chengjiao Yu, Hualong Yu, Geng Liu, Wei Chen, Bo He, Q. Jane Wang^*

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

The work reported in this paper aims at understanding sliding friction anisotropy at the nano-, micro-, and macroscales with respect to surface asperity orientation and exploring the mechanisms behind this phenomenon. Experiments were conducted by probing surfaces with grooves parallel or perpendicular to the direction of relative motion. Continuum mechanics analyses with the FEM and a semianalytical static friction model and the atomic molecular dynamics simulation were performed for the mechanism exploration. Friction anisotropy was understood from the differences in contact area, surface stiffness, stiction length, and energy barrier fromthe continuummechanics prospective and fromthat in the stick-slip phenomena at the atomic level.

Original language	English (US)
Pages (from-to)	145-156
Number of pages	12
Journal	Tribology Letters
Volume	53
Issue number	1
DOIs	https://doi.org/10.1007/s11249-013-0252-5
State	Published - Jan 2014

Keywords

Energy barrier
Friction anisotropy
Molecular dynamics (MD) simulation
Stick-slip
Surface textures' orientation

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1007/s11249-013-0252-5

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title = "Understanding topographic dependence of friction with micro- and nano-grooved surfaces",

abstract = "The work reported in this paper aims at understanding sliding friction anisotropy at the nano-, micro-, and macroscales with respect to surface asperity orientation and exploring the mechanisms behind this phenomenon. Experiments were conducted by probing surfaces with grooves parallel or perpendicular to the direction of relative motion. Continuum mechanics analyses with the FEM and a semianalytical static friction model and the atomic molecular dynamics simulation were performed for the mechanism exploration. Friction anisotropy was understood from the differences in contact area, surface stiffness, stiction length, and energy barrier fromthe continuummechanics prospective and fromthat in the stick-slip phenomena at the atomic level.",

keywords = "Energy barrier, Friction anisotropy, Molecular dynamics (MD) simulation, Stick-slip, Surface textures' orientation",

author = "Chengjiao Yu and Hualong Yu and Geng Liu and Wei Chen and Bo He and Wang, {Q. Jane}",

note = "Funding Information: Acknowledgments We would like to express our sincere gratitude to support from US National Science Foundation and Chinese Scholarship Council. We would like to thank Dr. Tom Lai for supplying the tungsten carbide material, Mr. Zhe Li, Mr. Fan Zhou and Mr. Zhen Zhang for their help on SEM imaging, and Dr. Xiaoqing Jin and Professor Jiadao Wang for their valuable discussions.",

year = "2014",

month = jan,

doi = "10.1007/s11249-013-0252-5",

language = "English (US)",

volume = "53",

pages = "145--156",

journal = "Tribology Letters",

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publisher = "Springer New York",

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T1 - Understanding topographic dependence of friction with micro- and nano-grooved surfaces

AU - Yu, Chengjiao

AU - Yu, Hualong

AU - Liu, Geng

AU - Chen, Wei

AU - He, Bo

AU - Wang, Q. Jane

N1 - Funding Information: Acknowledgments We would like to express our sincere gratitude to support from US National Science Foundation and Chinese Scholarship Council. We would like to thank Dr. Tom Lai for supplying the tungsten carbide material, Mr. Zhe Li, Mr. Fan Zhou and Mr. Zhen Zhang for their help on SEM imaging, and Dr. Xiaoqing Jin and Professor Jiadao Wang for their valuable discussions.

PY - 2014/1

Y1 - 2014/1

N2 - The work reported in this paper aims at understanding sliding friction anisotropy at the nano-, micro-, and macroscales with respect to surface asperity orientation and exploring the mechanisms behind this phenomenon. Experiments were conducted by probing surfaces with grooves parallel or perpendicular to the direction of relative motion. Continuum mechanics analyses with the FEM and a semianalytical static friction model and the atomic molecular dynamics simulation were performed for the mechanism exploration. Friction anisotropy was understood from the differences in contact area, surface stiffness, stiction length, and energy barrier fromthe continuummechanics prospective and fromthat in the stick-slip phenomena at the atomic level.

AB - The work reported in this paper aims at understanding sliding friction anisotropy at the nano-, micro-, and macroscales with respect to surface asperity orientation and exploring the mechanisms behind this phenomenon. Experiments were conducted by probing surfaces with grooves parallel or perpendicular to the direction of relative motion. Continuum mechanics analyses with the FEM and a semianalytical static friction model and the atomic molecular dynamics simulation were performed for the mechanism exploration. Friction anisotropy was understood from the differences in contact area, surface stiffness, stiction length, and energy barrier fromthe continuummechanics prospective and fromthat in the stick-slip phenomena at the atomic level.

KW - Energy barrier

KW - Friction anisotropy

KW - Molecular dynamics (MD) simulation

KW - Stick-slip

KW - Surface textures' orientation

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DO - 10.1007/s11249-013-0252-5

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EP - 156

JO - Tribology Letters

JF - Tribology Letters

IS - 1

ER -

Understanding topographic dependence of friction with micro- and nano-grooved surfaces

Abstract

Keywords

ASJC Scopus subject areas

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