Torsional elastic instability of double-walled carbon nanotubes

被引：14
|
作者：
Natsuki, Toshiaki [1 ]
Tsuchiya, Takayuki [1 ]
Ni, Qing-Qing [1 ]
Endo, Morinobu [2 ]
机构：
[1] Shinshu Univ, Fac Text Sci & Technol, Ueda, Nagano 3868567, Japan
[2] Shinshu Univ, Fac Engn, Nagano 3808553, Japan
来源：
CARBON | 2010年 / 48卷 / 15期
关键词：
D O I：
10.1016/j.carbon.2010.07.050
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, a theoretical analysis of the torsional buckling instability of double-walled carbon nanotubes (DWCNTs) and the DWCNTs embedded in an elastic medium is presented based on the continuum elastic shell model and Winkler spring model. Using the proposed theoretical approach, the influences of the aspect ratio, the buckling modes and the surrounding medium on the torsional stability are examined in detail. The simulation results show that the torsional instability of DWCNTs can occur in different buckling modes according to the aspect ratio. The van der Waals (vdW) interaction force between nanotubes reinforces the stiffness of nanoshells. Thus, the DWCNTs possess higher buckling stability than the SWCNTs without considering vdW interaction force. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4362 / 4368
页数：7
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