Uniform shell modeling of vertically aligned multi-walled carbon nanotube arrays

J. Joseph; Y. C. Lu

doi:10.1142/S2047684114500213

Uniform shell modeling of vertically aligned multi-walled carbon nanotube arrays

J. Joseph, Y. C. Lu

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Vertically aligned multi-walled carbon nanotube arrays (VA-MWCNTs) are novel carbon nanomaterials that have broader applications than individual carbon nanotubes (CNTs). This paper presents the uniform shell modeling of VA-MWCNTs which allow effectively design and characterize these complex materials. Multi-walled nanotubes in the arrays are approximated as equivalent single-walled CNTs and modeled with shell elements. The stiffness and Young's modulus obtained from the equivalent thickness method are comparable to those obtained from the modeling of actual multi-wall structures, but at much efficient computational efforts. VA-MWCNTs have also been designed at various architectures (square, FCC) and areal densities, and the resultant mechanical properties are analyzed.

Original language	English
Article number	1450021
Journal	International Journal of Computational Materials Science and Engineering
Volume	3
Issue number	4
DOIs	https://doi.org/10.1142/S2047684114500213
State	Published - Dec 1 2014

Bibliographical note

Publisher Copyright:
© 2014 Imperial College Press.

Funding

This work has been supported by the Kentucky NASA EPSCoR RIA program and the Kentucky Science and Engineering Foundation (KSEF) RDE program.

Funders	Funder number
Kentucky NASA EPSCoR RIA
Kentucky NASA EPSCoR RIA
Kentucky NASA EPSCoR RIA
Kentucky Science and Engineering Foundation

Keywords

areal density
equivalent thickness shell modeling
finite element method
Vertically aligned multi-walled carbon nanotubes

ASJC Scopus subject areas

Numerical Analysis
Modeling and Simulation
General Materials Science
Mechanics of Materials
Computer Science Applications

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abstract = "Vertically aligned multi-walled carbon nanotube arrays (VA-MWCNTs) are novel carbon nanomaterials that have broader applications than individual carbon nanotubes (CNTs). This paper presents the uniform shell modeling of VA-MWCNTs which allow effectively design and characterize these complex materials. Multi-walled nanotubes in the arrays are approximated as equivalent single-walled CNTs and modeled with shell elements. The stiffness and Young's modulus obtained from the equivalent thickness method are comparable to those obtained from the modeling of actual multi-wall structures, but at much efficient computational efforts. VA-MWCNTs have also been designed at various architectures (square, FCC) and areal densities, and the resultant mechanical properties are analyzed.",

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AB - Vertically aligned multi-walled carbon nanotube arrays (VA-MWCNTs) are novel carbon nanomaterials that have broader applications than individual carbon nanotubes (CNTs). This paper presents the uniform shell modeling of VA-MWCNTs which allow effectively design and characterize these complex materials. Multi-walled nanotubes in the arrays are approximated as equivalent single-walled CNTs and modeled with shell elements. The stiffness and Young's modulus obtained from the equivalent thickness method are comparable to those obtained from the modeling of actual multi-wall structures, but at much efficient computational efforts. VA-MWCNTs have also been designed at various architectures (square, FCC) and areal densities, and the resultant mechanical properties are analyzed.

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Uniform shell modeling of vertically aligned multi-walled carbon nanotube arrays

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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