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http://dx.doi.org/10.12989/anr.2019.7.6.431

Nonlocal effect on the vibration of armchair and zigzag SWCNTs with bending rigidity  

Hussain, Muzamal (Department of Mathematics, Govt. College University Faisalabad)
Naeem, Muhammad Nawaz (Department of Mathematics, Govt. College University Faisalabad)
Tounsi, Abdelouahed (Materials and Hydrology Laboratory, University of Sidi Bel Abbes, Algeria Faculty of Technology, Civil Engineering Department)
Taj, Muhammad (Department of Mathematics, University of Azad Jammu and Kashmir)
Publication Information
Advances in nano research / v.7, no.6, 2019 , pp. 431-442 More about this Journal
Abstract
Vibration analysis of carbon nanotubes (CNTs) is very essential field owing to their many promising applications in tiny instruments. In current study, the Eringen's nonlocal elasticity theory with clamped-clamped and clamped-free end conditions is utilized for the vibration analysis of armchair and zigzag SWCNTs. The Fourier method is utilized to solve the ordinary differential equation. The motion equation for this system is developed using a novel wave propagation method. Complex exponential functions have been used and the axial model depends on BCs that has been described at the edges of CNTs. The behavior of different nonlocal parameters is considered to find the vibrational frequency of SWCNTs. It is exhibited that the effect of frequencies against aspect ratio by varying the bending rigidity. It has been investigated that by increasing the nonlocal parameter decreases the frequencies and on increasing the aspect ratio increases the frequencies for both the tubes. To generate the fundamental natural frequencies of SWCNTs, computer software MATLAB engaged. The numerical results are validated with existing open text. Since the percentage of error is negligible, the model has been concluded as valid.
Keywords
nonlocal theory; WPA; carbon nanotubes; wave propagation approach; Fourier method;
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