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| Titel: |
Effect of Environmental Temperatures on Elastic Properties of Single-Walled Carbon Nanotube |
| Auteur: |
Zhu, S. Q. Wang, X. |
| Verschenen in: |
Journal of thermal stresses |
| Paginering: | Jaargang 30 (2007) nr. 12 pagina's 1195-1210 |
| Jaar: |
2007-12 |
| Inhoud: |
Based on a method of molecular structural mechanics (MSM), the effect of environmental temperature on elastic properties of armchair and zigzag single-walled carbon nanotubes is investigated. Single-walled carbon nanotubes with different chiral vectors are considered as a molecular structural mechanics model, which is composed of the discrete molecular structures through the carbon-to-carbon bonds. By considering the effect of environmental temperature on force constant values of the bonds stretching, bonds angle bending and torsional resistance, the corresponding basic parameters of a truss of the single-walled carbon nanotubes are obtained in different environmental temperatures, respectively. Nanoscale structural mechanics simulation for the elastic properties of single-walled carbon nanotubes in different environmental temperatures reveals that the elastic modulus of single-walled carbon nanotubes decreases significantly with the increase of environmental temperature. It is noted that the Young's modulus of single-walled carbon nanotubes is more sensitive to environmental temperature than the shear modulus. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 7 gevonden artikelen
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