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Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout

During the past five years, it has been shown that carbon nanotubes act as an exceptional reinforcement for composites. For this reason, a large number of investigations have been devoted to analysis of fundamental, structural behavior of solid structures made of carbon-nanotube-reinforced composite...

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Detalles Bibliográficos
Autores principales: Mirzaei, Mostafa, Kiani, Yaser
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4901544/
https://www.ncbi.nlm.nih.gov/pubmed/27335742
http://dx.doi.org/10.3762/bjnano.7.45
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author Mirzaei, Mostafa
Kiani, Yaser
author_facet Mirzaei, Mostafa
Kiani, Yaser
author_sort Mirzaei, Mostafa
collection PubMed
description During the past five years, it has been shown that carbon nanotubes act as an exceptional reinforcement for composites. For this reason, a large number of investigations have been devoted to analysis of fundamental, structural behavior of solid structures made of carbon-nanotube-reinforced composites (CNTRC). The present research, as an extension of the available works on the vibration analysis of CNTRC structures, examines the free vibration characteristics of plates containing a cutout that are reinforced with uniform or nonuniform distribution of carbon nanotubes. The first-order shear deformation plate theory is used to estimate the kinematics of the plate. The solution method is based on the Ritz method with Chebyshev basis polynomials. Such a solution method is suitable for arbitrary in-plane and out-of-plane boundary conditions of the plate. It is shown that through a functionally graded distribution of carbon nanotubes across the thickness of the plate, the fundamental frequency of a rectangular plate with or without a cutout may be enhanced. Furthermore, the frequencies are highly dependent on the volume fraction of carbon nanotubes and may be increased upon using more carbon nanotubes as reinforcement.
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spelling pubmed-49015442016-06-22 Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout Mirzaei, Mostafa Kiani, Yaser Beilstein J Nanotechnol Full Research Paper During the past five years, it has been shown that carbon nanotubes act as an exceptional reinforcement for composites. For this reason, a large number of investigations have been devoted to analysis of fundamental, structural behavior of solid structures made of carbon-nanotube-reinforced composites (CNTRC). The present research, as an extension of the available works on the vibration analysis of CNTRC structures, examines the free vibration characteristics of plates containing a cutout that are reinforced with uniform or nonuniform distribution of carbon nanotubes. The first-order shear deformation plate theory is used to estimate the kinematics of the plate. The solution method is based on the Ritz method with Chebyshev basis polynomials. Such a solution method is suitable for arbitrary in-plane and out-of-plane boundary conditions of the plate. It is shown that through a functionally graded distribution of carbon nanotubes across the thickness of the plate, the fundamental frequency of a rectangular plate with or without a cutout may be enhanced. Furthermore, the frequencies are highly dependent on the volume fraction of carbon nanotubes and may be increased upon using more carbon nanotubes as reinforcement. Beilstein-Institut 2016-04-07 /pmc/articles/PMC4901544/ /pubmed/27335742 http://dx.doi.org/10.3762/bjnano.7.45 Text en Copyright © 2016, Mirzaei and Kiani https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Mirzaei, Mostafa
Kiani, Yaser
Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
title Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
title_full Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
title_fullStr Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
title_full_unstemmed Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
title_short Free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
title_sort free vibration of functionally graded carbon-nanotube-reinforced composite plates with cutout
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4901544/
https://www.ncbi.nlm.nih.gov/pubmed/27335742
http://dx.doi.org/10.3762/bjnano.7.45
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