Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism

Xia Liu; Weibang Lu; Orlando M. Ayala; Lian-Ping Wang; Anette M Karlsson; Qingsheng Yang; Tsu-Wei Chou

doi:10.1039/C3NR32681K

Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism

Xia Liu, Weibang Lu, Orlando M. Ayala, Lian-Ping Wang, Anette M Karlsson, Qingsheng Yang, Tsu-Wei Chou

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

Abstract

A comprehensive investigation of the mechanical behavior and microstructural evolution of carbon nanotube (CNT) continuous fibers under twisting and tension is conducted using coarse-grained molecular dynamics simulations. The tensile strength of CNT fibers with random CNT stacking is found to be higher than that of fibers with regular CNT stacking. The factor dominating the mechanical response of CNT fibers is identified as individual CNT stretching. A simplified twisted CNT fiber model is studied to illustrate the structural evolution mechanisms of CNT fibers under tension. Moreover, it is demonstrated that CNT fibers can be reinforced by enhancing intertube interactions. This study would be helpful not only in the general understanding of the nano- and micro-scale factors affecting CNT fibers' mechanical behavior, but also in the optimal design of CNT fibers' architecture and performance.

Original language	American English
Journal	Nanoscale
DOIs	https://doi.org/10.1039/C3NR32681K
State	Published - Jan 1 2013

Disciplines

Materials Science and Engineering
Mechanical Engineering

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10.1039/C3NR32681KLicense: CC BY

http://pubs.rsc.org/en/Content/ArticleLanding/2013/NR/c3nr32681k#!divAbstract

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title = "Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism",

abstract = " A comprehensive investigation of the mechanical behavior and microstructural evolution of carbon nanotube (CNT) continuous fibers under twisting and tension is conducted using coarse-grained molecular dynamics simulations. The tensile strength of CNT fibers with random CNT stacking is found to be higher than that of fibers with regular CNT stacking. The factor dominating the mechanical response of CNT fibers is identified as individual CNT stretching. A simplified twisted CNT fiber model is studied to illustrate the structural evolution mechanisms of CNT fibers under tension. Moreover, it is demonstrated that CNT fibers can be reinforced by enhancing intertube interactions. This study would be helpful not only in the general understanding of the nano- and micro-scale factors affecting CNT fibers' mechanical behavior, but also in the optimal design of CNT fibers' architecture and performance.",

author = "Xia Liu and Weibang Lu and Ayala, \{Orlando M.\} and Lian-Ping Wang and Karlsson, \{Anette M\} and Qingsheng Yang and Tsu-Wei Chou",

note = "Liu, X., Lu, W., Ayala, O. M., 2013, {"}Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism,{"} Nanoscale, 5(5) pp. 2002-2008.",

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doi = "10.1039/C3NR32681K",

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T1 - Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism

AU - Liu, Xia

AU - Lu, Weibang

AU - Ayala, Orlando M.

AU - Wang, Lian-Ping

AU - Karlsson, Anette M

AU - Yang, Qingsheng

AU - Chou, Tsu-Wei

N1 - Liu, X., Lu, W., Ayala, O. M., 2013, "Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism," Nanoscale, 5(5) pp. 2002-2008.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - A comprehensive investigation of the mechanical behavior and microstructural evolution of carbon nanotube (CNT) continuous fibers under twisting and tension is conducted using coarse-grained molecular dynamics simulations. The tensile strength of CNT fibers with random CNT stacking is found to be higher than that of fibers with regular CNT stacking. The factor dominating the mechanical response of CNT fibers is identified as individual CNT stretching. A simplified twisted CNT fiber model is studied to illustrate the structural evolution mechanisms of CNT fibers under tension. Moreover, it is demonstrated that CNT fibers can be reinforced by enhancing intertube interactions. This study would be helpful not only in the general understanding of the nano- and micro-scale factors affecting CNT fibers' mechanical behavior, but also in the optimal design of CNT fibers' architecture and performance.

AB - A comprehensive investigation of the mechanical behavior and microstructural evolution of carbon nanotube (CNT) continuous fibers under twisting and tension is conducted using coarse-grained molecular dynamics simulations. The tensile strength of CNT fibers with random CNT stacking is found to be higher than that of fibers with regular CNT stacking. The factor dominating the mechanical response of CNT fibers is identified as individual CNT stretching. A simplified twisted CNT fiber model is studied to illustrate the structural evolution mechanisms of CNT fibers under tension. Moreover, it is demonstrated that CNT fibers can be reinforced by enhancing intertube interactions. This study would be helpful not only in the general understanding of the nano- and micro-scale factors affecting CNT fibers' mechanical behavior, but also in the optimal design of CNT fibers' architecture and performance.

UR - https://engagedscholarship.csuohio.edu/enme_facpub/176

UR - http://pubs.rsc.org/en/Content/ArticleLanding/2013/NR/c3nr32681k#!divAbstract

U2 - 10.1039/C3NR32681K

DO - 10.1039/C3NR32681K

M3 - Article

JO - Nanoscale

JF - Nanoscale

ER -

Microstructural Evolution of Carbon Nanotube Fibers: Deformation and Strength Mechanism

Abstract

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