In this paper, the elastic moduli of elliptic carbon nanotubes (ECNTs) are described. A three-dimensional finite element (FE) model for this carbon nanotube is proposed. The covalent bonds are simulated by beam elements in the FE model. It is found that the cross sectional aspect ratio (a/b) of ECNTs significantly affects Young’s and shear modulus. Based on the FE model, the values of the Young’s modulus have varied from 0.87 to 1.04 TPa and the values of the shear modulus have changed from 0.17 to 0.45 TPa.
کلید واژگان :
Elastic moduli, Elliptic carbon nanotubes, Finite element model
