On the finite element modelling and simulation of carbon nanotubes

Title: On the finite element modelling and simulation of carbon nanotubes
Creator: Ghadyani, Ghasem; Akbarzade, Mojtaba; Öchsner, Andreas
Relation: Key Engineering Materials Vol. 607, p. 55-61
Publisher Link: http://dx.doi.org/10.4028/www.scientific.net/KEM.607.55
Publisher: Scientific.Net
Resource Type: journal article
Date: 2014
Description: In this paper, two different beam elements (i.e. according to the Bernoulli beam and Timoshenko beam theory) for the modeling of the behavior of carbon nanotubes are applied. Finite element models are developed for this study with variation of chirality for both zig-zag and armchair configurations of CNTs. The deformations from the finite element simulations are subsequently used to predict the elastic stiffness and the critical buckling load in terms of material and geometric parameters. Furthermore, the dependence of mechanical properties on the kind of beam element and the mesh density is also compared. Based on the obtained results, Young's modulus and critical buckling load of structures using Timoshenko beams are clearly lower than the Bernoulli beam approach for all chiralities.
Subject: buckling; carbon nanotube (CN; mechanical property; numerical methods; stiffness
Identifier: http://hdl.handle.net/1959.13/1303101
Identifier: uon:20608
Identifier: ISSN:1013-9826
Language: eng
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