Paper Title:
Compressive Instability of Carbon Nanotubes
  Abstract

Based on both molecular mechanics and computational structural mechanics, a three-dimensional (3D) equivalent beam element is developed to model a C-C covalent bond on carbon nanotubes (CNTs) whereas the van der Waals forces between atoms in the different walls of multi-walled CNTs are described using a rod element. The buckling characteristics of CNTs are conveniently analyzed by using the traditional finite element method (FEM) of a 3D beam and rod model, termed as molecular structural mechanics approach (MSMA). Moreover, to model the CNTs with large length or large diameter, the validity of Euler’s beam buckling theory and a shell model with proper properties defined from the results of MSMA is investigated. The predicted results by this simple continuum mechanics approach agree well with the reported experimental data.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
2187-2190
DOI
10.4028/www.scientific.net/KEM.353-358.2187
Citation
N. Hu, K. Nunoya, H. Fukunaga, "Compressive Instability of Carbon Nanotubes", Key Engineering Materials, Vols. 353-358, pp. 2187-2190, 2007
Online since
September 2007
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Price
$32.00
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