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contributor authorXinling Ma
contributor authorHongtao Wang
contributor authorWei Yang
date accessioned2017-05-09T00:13:08Z
date available2017-05-09T00:13:08Z
date copyrightJuly, 2004
date issued2004
identifier issn0094-4289
identifier otherJEMTA8-27060#258_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/130112
description abstractAn abnormal friction law refers to the case where the friction force does not increase monotonically with the normal pressure. We investigate the possibility of abnormal tribological behavior for two surfaces coated with aligned single-walled carbon nanotubes (SWCNTs). Detailed molecular dynamics simulations for aligned SWCNTs predict modulated variation between the kinetic friction force and the applied pressure. The interacting SWCNTs float with respect to each other at about the equilibrium separation of van der Waals interaction, and the wavy contact profile breaks the symmetry of the contacting cross-section. Cases treated by molecular dynamics simulation include two aligned (10,10) SWCNTs with periodic end conditions, and a stack of three aligned (10,10) SWCNTs with free end boundary conditions. A continuum theory based on the wall deflection under finite deformation, in combination with an adhesion criterion similar to the JKR theory, on the other hand, predicts a declining law between the frictional force and the pressure. The correlation of the data obtained through the atomistic and the continuum approaches relies on a deeper understanding on the friction process among SWCNTs.
publisherThe American Society of Mechanical Engineers (ASME)
titleTribological Behavior of Aligned Single-Walled Carbon Nanotubes
typeJournal Paper
journal volume126
journal issue3
journal titleJournal of Engineering Materials and Technology
identifier doi10.1115/1.1752924
journal fristpage258
journal lastpage264
identifier eissn1528-8889
keywordsForce
keywordsTribology
keywordsSingle-walled carbon nanotubes
keywordsMolecular dynamics simulation
keywordsFriction
keywordsVan der Waals forces
keywordsPressure AND Atoms
treeJournal of Engineering Materials and Technology:;2004:;volume( 126 ):;issue: 003
contenttypeFulltext


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