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Advances in Nano Research Volume 9, Number 2, August 2020 , pages 83-90 DOI: https://doi.org/10.12989/anr.2020.9.2.083 |
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Nano research for investigating the effect of SWCNTs dimensions on the properties of the simulated nanocomposites: a molecular dynamics simulation |
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Ashkan Farazin and Mehdi Mohammadimehr
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| Abstract | ||
| This research investigates the effect of single walled carbon nanotubes (SWCNTs) dimensions in terms of diameter on the mechanical properties (longitudinal and transverse Young\'s modulus) of the simulated nanocomposites by molecular dynamics (MDs) method. MDs utilized to create nanocomposite models consisting of five case studies of SWCNTs with different chiralities (5, 0), (10, 0), (15, 0), (20, 0) and (25, 0) as the reinforcement and using polymethyl methacrylate (PMMA) as the common matrix. The results show that with increasing of SWCNTs diameter, the mechanical and physical properties increase. It is important that with the increasing of SWCNTs diameter, density, longitudinal and transverse Young\'s modulus, shear modulus, poisson\'s ratio, and bulk modulus of simulated nanocomposite from (5, 0) to (25, 0) approximately becomes 1.54, 3, 2, 1.43, 1.11 and 1.75 times more than (5, 0), respectively. Then to validate the results, the stiffness matrix is obtained by Materials studio software. | ||
| Key Words | ||
| molecular dynamics simulation; mechanical properties; polymethyl methacrylate; single walled carbon nanotubes; different chiralities | ||
| Address | ||
| (1) Ashkan Farazin and Mehdi Mohammadimehr: Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran, P.O. Box 87317-53153 | ||