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Prediction of pull-out force of multi-walled carbon nanotube (MWCNT) in sword-in-sheath mode

Yamamoto, Go, Liu, Sen, Hu, Ning, Hashida, Toshiyuki, Liu, Yaolu, Yan, Cheng, Li, Yuan, Cui, Hao, Ning, Huiming, & Wu, Liangke (2012) Prediction of pull-out force of multi-walled carbon nanotube (MWCNT) in sword-in-sheath mode. Computational Materials Science, 60, pp. 7-12.

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Abstract

The pull-out force of some outer walls against other inner walls in multi-walled carbon nanotubes (MWCNTs) was systematically studied by molecular mechanics simulations. The obtained results reveal that the pull-out force is proportional to the square of the diameter of the immediate outer wall on the sliding interface, which highlights the primary contribution of the capped section of MWCNT to the pull-out force. A simple empirical formula was proposed based on the numerical results to predict the pull-out force for an arbitrary pull-out in a given MWCNT directly from the diameter of the immediate outer wall on the sliding interface. Moreover, tensile tests for MWCNTs with and without acid-treatment were performed with a nanomanipulator inside a vacuum chamber of a scanning electron microscope (SEM) to validate the present empirical formula. It was found that the theoretical pull-out forces agree with the present and some previous experimental results very well.

Impact and interest:

13 citations in Scopus
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10 citations in Web of Science®

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ID Code: 51333
Item Type: Journal Article
Keywords: Capped section, Molecular mechanics simulations, Multi-walled carbon nanotubes, Pull-out force, Sword-in-sheath mode, Empirical formulas, Inner walls, Molecular mechanics simulation, Nano manipulator, Numerical results, Primary contribution, Pull-out, Sliding interfaces, Tensile tests, Vacuum chambers, Molecular mechanics, Multiwalled carbon nanotubes (MWCN), Scanning electron microscopy, Tensile testing, Polytetrafluoroethylenes
DOI: 10.1016/j.commatsci.2012.03.016
ISSN: 0927-0256
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Elsevier B.V.
Copyright Statement: This is the author’s version of a work that was accepted for publication in <Computational Materials Science>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computational Materials Science, [VOL 60, (2012)] DOI: 10.1016/j.commatsci.2012.03.016
Deposited On: 05 Jul 2012 08:55
Last Modified: 11 Sep 2013 13:10

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