Young's Modulus of Single and Double Walled Carbon Nanocones Using Finite Element Method

In this paper, a three-dimensional finite element (FE) model of carbon nanocones (CNCs) is proposed and used for obtaining Young's modulus of CNCs. In this model, stretching and bending forces between carbon atoms are simulated using truss elements in ANSYS software. Then, the model is subjected to the tension and by obtaining the stiffness of the CNC and using elasticity theory, Young’s modulus is calculated. The results showed that for a fixed length of CNC, the modulus increase with the increase in diameter whereas it decreases by an increase in the apex angle. Also, Young’s modulus of double walled carbon nanocones (DWCNCs) obtained between the values of each layer. Furthermore, it is showed that elastic modulus can be effected by defects and their positions in CNC.