Paper Title:
Investigation of the Dynamic Buckling in the Carbon Nanotube under Impact Torque
  Abstract

The dynamic buckling caused by propagation of a stress wave in single-wall carbon nanotube subjected to impact torque is investigated. The single-wall carbon nanotube is modeled by a cylindrical shell with semi-infinite length, and the dynamic buckling under impact torque is reduced to a bifurcation problem caused by the propagation of torsion stress wave. The bifurcation problem can be converted to solving a group of nonlinear algebraic equations. The numerical computation is carried out, and the effects of the different parameters on dynamic buckling are discussed. It is found that if critical buckling time of the carbon nanotube is different, the corresponding buckling model is different, too. Relation between the critical buckling stress and the critical buckling time is given. Molecular-dynamic simulations of torsional deformation of a single-wall carbon nanotube have been used to obtain the critical buckling strain, which is 0.064. In this work, the critical buckling strain obtained by the continuum model is 0.061, which is very close to the value 0.064. Single-wall carbon nanotubes have very much powerful anti-impact torque, and the critical buckling shearing stress can reach up to 132GPa.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
65-70
DOI
10.4028/www.scientific.net/KEM.340-341.65
Citation
F. H. Sha, L. M. Zhao, G. T. Yang, "Investigation of the Dynamic Buckling in the Carbon Nanotube under Impact Torque", Key Engineering Materials, Vols. 340-341, pp. 65-70, 2007
Online since
June 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Masami Kobayashi, Koji Uetani, Tomohiro Mikami
Abstract:The symmetry limit theory for 3-D continua developed by the authors, is applied to predictions of the occurrence limit of nonuniform strain...
1411
Authors: Yan Dong Chu, Jian Gang Zhang, Xian Feng Li, Ying Xiang Chang
Abstract:In this paper, the dynamical behaviors of the centrifugal flywheel governor with external disturbance are discussed, and the system exhibits...
309
Authors: Peter B. Béda
Abstract:There are several self-sustained oscillatory phenomena observed at plastic deformation of metals. One of them happens at the beginning of...
367
Authors: Zhi Wen Zhu, Chang Wei Sui, Jia Xu
Abstract:In this paper, the nonlinear dynamic characteristics of vehicle semi-active suspension system with SMA spring were studied in hysteretic...
265
Authors: Zhi Ying Gao, Yong Zang, Tian Han
Chapter 3: Advanced Manufacturing Technology (1)
Abstract:According to the lumped mass method, the drive system of rolling mill can be simplified as a three-degree-of-freedom spring-mass model. The...
1514