A molecular mechanics study on size-dependent elastic properties of single-walled boron nitride nanotubes

作者：Jiang Lai; Guo Wanlin^*

来源：Journal of the Mechanics and Physics of Solids, 2011, 59(6): 1204-1213.

DOI：10.1016/j.jmps.2011.03.008

• Boron nitride nanotubes
• Composite nanotubes
• Elastic properties
• Molecular mechanics
• Multiscale

We present an analytical study for the elastic properties of single-walled boron nitride nanotubes via a molecular mechanics model. Closed-form expressions for Young's modulus. Poisson's 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.

• 出版日期2011-6
• 单位南京航空航天大学