Dynamic Analysis of Pristine and Defective Single-Walled Carbon Nanotubes

Date

2024-1-11

Author

Jafarnia, Nima

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This study focuses on investigating the vibrational behavior of SWNTs through conducting modal analysis. The primary objective of this research is to determine the natural frequency of pristine and defective SWNTs. Therefore, a comprehensive computational analysis using finite element modeling is performed on both pristine and defective SWNTs under cantilever and bridge boundary conditions with various diameters, lengths, and chirality. The results indicate that the natural frequency of all types of SWNTs decreases as the length increases. Moreover, since the impact of length is more prominent than diameter, the diameter’s impact can be neglected by the increase of length. Another part of this article focuses on the impacts of vacancy defects and Stone-Wales defects. It is observed that the double vacancy defects have the most degrading effects on the natural frequency of the SWNTs. This research’s aim is to contribute to the development of nanoscale technologies and the improvement of the field of materials science.

Subject Keywords

Carbon nanotubes, Natural frequency, Vibration, Stone-Wales defects, Vacancy defects

URI

https://hdl.handle.net/11511/107824

Collections

Northern Cyprus Campus, Thesis