Title
The effects of different defects on the elastic constants of single-walled carbon nanotubes.
Abstract
In this paper, based on the continuum mechanics method, we adopt the three-dimensional finite element (FE) models to study the effects of different atom vacancy defects on the elastic constants of armchair and zigzag single-walled carbon nanotubes (SWCNTs). Also, the variations of the elastic constants with the nanotube diameter and length are investigated. The diameters of SWCNTs vary from 0.5 to 4.5 nm and the lengths vary from 2.95 to 12.31 nm. The calculation results show that the diameter, the length and the defects are relatively significant factors affecting the elastic constants of SWCNTs. Among these factors, the nanotube diameter is the most significant one. For nanotube with small diameter and length, the defects studied will affect the elastic constants evidently and the largest effective proportion of defects on the elastic constants of nanotube is within 10%. ©2010 IEEE.
Year
DOI
Venue
2010
10.1109/NEMS.2010.5592271
NEMS
Keywords
Field
DocType
atom vacancy defects,carbon nanotubes,elastic constants,finite element method,finite element,finite element analysis,young s modulus,carbon nanotube,three dimensional,continuum mechanics,finite element methods,computational modeling,chemical elements
Composite material,Nanotube,Vacancy defect,Continuum mechanics,Atom,Young's modulus,Finite element method,Carbon nanotube,Zigzag,Materials science
Conference
Volume
Issue
Citations 
null
null
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Lijie Chen1186.90
Qi Zhao200.68
Zunqun Gong300.34
Hongtao Zhang43610.76