Carbon nanotubes (CNTs) are specific structures with valuable characteristics. In general, the structure of each nanotube is defined by a unique chiral vector. In this paper, different structures of short single-walled CNTs are simulated and their mechanical properties are determined using finite element method. For this aim, a simple algorithm is presented which is able to model the geometry of single-walled CNTs with any desired structure based on nano-scale continuum mechanics approach. By changing the chiral angle from 0 to 30 degree for constant length to radius ratio, the effect of nanotube chirality on its mechanical properties is evaluated. It is observed that the tensile modulus of CNTs changes between 0.93-1.02 TPa for different structures, and it can be higher for chiral structures than zigzag and armchair ones. Also, for different chiral angles, the bending modulus changes between 0.76-0.82 TPa, while the torsional modulus varies in the range of 0.283-0.301TPa.
Zakeri, M., & Shayanmehr, M. (2013). On the Mechanical Properties of Chiral Carbon Nanotubes. Journal of Ultrafine Grained and Nanostructured Materials, 46(1), 1-9. doi: 10.7508/jufgnsm.2013.01.001
MLA
Mahnaz Zakeri; Mahdi Shayanmehr. "On the Mechanical Properties of Chiral Carbon Nanotubes", Journal of Ultrafine Grained and Nanostructured Materials, 46, 1, 2013, 1-9. doi: 10.7508/jufgnsm.2013.01.001
HARVARD
Zakeri, M., Shayanmehr, M. (2013). 'On the Mechanical Properties of Chiral Carbon Nanotubes', Journal of Ultrafine Grained and Nanostructured Materials, 46(1), pp. 1-9. doi: 10.7508/jufgnsm.2013.01.001
VANCOUVER
Zakeri, M., Shayanmehr, M. On the Mechanical Properties of Chiral Carbon Nanotubes. Journal of Ultrafine Grained and Nanostructured Materials, 2013; 46(1): 1-9. doi: 10.7508/jufgnsm.2013.01.001
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