Abstract
We present an analytical study for the elastic properties of single-walled boron nitride nanotubes via a molecular mechanics model. Closed-form expressions for Youngs modulus, Poissons ratio and surface shear modulus are derived as functions of the nanotube diameter. The results are helix angle sensitive and comparable to those from ab initio calculations. This work is a first effort to establish analytical model of molecular mechanics for composite nanotubes and reveals the dissimilarities between size-dependent elastic properties of carbon and boron nitride nanotubes.
| Original language | English |
|---|---|
| Pages (from-to) | 1204-1213 |
| Number of pages | 10 |
| Journal | Journal of the Mechanics and Physics of Solids |
| Volume | 59 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2011 |
| Externally published | Yes |
Keywords
- Boron nitride nanotubes
- Composite nanotubes
- Elastic properties
- Molecular mechanics
- Multiscale