Effects of the dispersion of polymer wrapped two neighbouring single walled carbon nanotubes (SWNTs) on nanoengineering load transfer

Yancheng Zhang; Junhua Zhao; Ning Wei; Jinwu Jiang; Yadong Gong; Timon Rabczuk

doi:10.1016/j.compositesb.2012.09.079

Effects of the dispersion of polymer wrapped two neighbouring single walled carbon nanotubes (SWNTs) on nanoengineering load transfer

Yancheng Zhang, Junhua Zhao, Ning Wei, Jinwu Jiang, Yadong Gong, Timon Rabczuk

College of Engineering

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

36 Citations (Scopus)

Abstract

The influence of polymer wrapped two neighbouring single-walled nanotubes' (SWNTs) dispersion on their load transfer is investigated by molecular dynamics (MD) simulations. The influence of the SWNTs' position, the polymer chain length and the temperature on the interaction force between the two neighbouring SWNTs are systematically studied. There are four main findings from our simulations: (1) The dispersion angle dominates the amplitude and the interaction force evolution with or without polymer during the pulling process of two SWNTs. (2) The chain length does not affect the two SWNTs' interaction force within a short separation distance, the so called "Force enhancing point". The enhanced load effect of the polymer takes place after the load displacement goes across this point. (3) The temperature has a minor influence on the maximum pull force, while the increased temperature greatly decreases the pullout energy. (4) Based on the detailed analysis of the separation process, the self-repairing function of the system is found. The present results provide a guidance for understanding the load transfer of SWNT dispersion in phononic devices.

Original language	English
Pages (from-to)	1714-1721
Number of pages	8
Journal	Composites Part B: Engineering
Volume	45
Issue number	1
DOIs	https://doi.org/10.1016/j.compositesb.2012.09.079
Publication status	Published - 2013 Feb

Keywords

A. Nano-structures
B. Adhesion
B. Mechanical properties
C. Computational modeling
Dispersion of two neighbouring SWNTs

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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title = "Effects of the dispersion of polymer wrapped two neighbouring single walled carbon nanotubes (SWNTs) on nanoengineering load transfer",

abstract = "The influence of polymer wrapped two neighbouring single-walled nanotubes' (SWNTs) dispersion on their load transfer is investigated by molecular dynamics (MD) simulations. The influence of the SWNTs' position, the polymer chain length and the temperature on the interaction force between the two neighbouring SWNTs are systematically studied. There are four main findings from our simulations: (1) The dispersion angle dominates the amplitude and the interaction force evolution with or without polymer during the pulling process of two SWNTs. (2) The chain length does not affect the two SWNTs' interaction force within a short separation distance, the so called {"}Force enhancing point{"}. The enhanced load effect of the polymer takes place after the load displacement goes across this point. (3) The temperature has a minor influence on the maximum pull force, while the increased temperature greatly decreases the pullout energy. (4) Based on the detailed analysis of the separation process, the self-repairing function of the system is found. The present results provide a guidance for understanding the load transfer of SWNT dispersion in phononic devices.",

keywords = "A. Nano-structures, B. Adhesion, B. Mechanical properties, C. Computational modeling, Dispersion of two neighbouring SWNTs",

author = "Yancheng Zhang and Junhua Zhao and Ning Wei and Jinwu Jiang and Yadong Gong and Timon Rabczuk",

year = "2013",

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AU - Jiang, Jinwu

AU - Gong, Yadong

AU - Rabczuk, Timon

PY - 2013/2

Y1 - 2013/2

N2 - The influence of polymer wrapped two neighbouring single-walled nanotubes' (SWNTs) dispersion on their load transfer is investigated by molecular dynamics (MD) simulations. The influence of the SWNTs' position, the polymer chain length and the temperature on the interaction force between the two neighbouring SWNTs are systematically studied. There are four main findings from our simulations: (1) The dispersion angle dominates the amplitude and the interaction force evolution with or without polymer during the pulling process of two SWNTs. (2) The chain length does not affect the two SWNTs' interaction force within a short separation distance, the so called "Force enhancing point". The enhanced load effect of the polymer takes place after the load displacement goes across this point. (3) The temperature has a minor influence on the maximum pull force, while the increased temperature greatly decreases the pullout energy. (4) Based on the detailed analysis of the separation process, the self-repairing function of the system is found. The present results provide a guidance for understanding the load transfer of SWNT dispersion in phononic devices.

AB - The influence of polymer wrapped two neighbouring single-walled nanotubes' (SWNTs) dispersion on their load transfer is investigated by molecular dynamics (MD) simulations. The influence of the SWNTs' position, the polymer chain length and the temperature on the interaction force between the two neighbouring SWNTs are systematically studied. There are four main findings from our simulations: (1) The dispersion angle dominates the amplitude and the interaction force evolution with or without polymer during the pulling process of two SWNTs. (2) The chain length does not affect the two SWNTs' interaction force within a short separation distance, the so called "Force enhancing point". The enhanced load effect of the polymer takes place after the load displacement goes across this point. (3) The temperature has a minor influence on the maximum pull force, while the increased temperature greatly decreases the pullout energy. (4) Based on the detailed analysis of the separation process, the self-repairing function of the system is found. The present results provide a guidance for understanding the load transfer of SWNT dispersion in phononic devices.

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