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Nonlinear finite-element modeling of graphene and single- and multi-walled carbon nanotubes under axial tension
Journal article   Peer reviewed

Nonlinear finite-element modeling of graphene and single- and multi-walled carbon nanotubes under axial tension

E. Mohammadpour and M. Awang
Applied Physics A, Vol.106(3), pp.581-588
2012
DOI: https://doi.org/10.1007/s00339-011-6625-4
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Abstract

An effective finite-element (FE) approach for modeling the structure and the deformation of single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) is presented. An individual tube was modeled using a frame-like structure with beam elements. The effect of van der Waals forces, crucial in MWCNTs, was modeled by spring elements. The success of this new carbon nanotube (CNT) modeling approach was verified by comparing the simulation results for single- and multi-walled nanotubes and graphene with other experimental and computational results available in the literature. Simulations of final deformed configurations were in excellent agreement with the atomistic models for various deformations. The proposed approach successfully predicts the experimentally observed values for mechanical behavior of SWCNTs and MWCNTs. The results demonstrated that the proposed FE technique could provide a valuable tool for studying the mechanical behavior of different types of nanotubes, as well as their effectiveness as load-bearing entities in nanocomposite materials.

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Citation topics
2 Chemistry
2.76 2D Materials
2.76.23 Carbon Nanotubes
Web Of Science research areas
Materials Science, Multidisciplinary
Physics, Applied
ESI research areas
Physics
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