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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 110-116The Effect of Nanotube Specifications on...

The Effect of Nanotube Specifications on Multi-Scale Modeling of Nanocomposites

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Abstract:

The effect of diameter, chirality and volume fraction of SWCNTs on the tensile behavior of nanocomposites is studied. Multi-scale material modeling is applied to assemble different RVEs composed of various SWCNTs embedded in polymer. Nanotubes are modeled in continuum mechanics, based on their atomic structures as space frame structures. Beam elements in this structure are defined based on carbon bonds characteristics in molecular mechanics. Polymer portion of the RVE is modeled as a linear elastic continuum material, with lower accuracy regarding to the multi-scale modeling technique. Attained stress-strain curves obtained from modeled nanocomposites revealed that using Armchair SWCNTs in RVEs makes nanocomposites tougher rather than Zigzags. Also, diameter of CNT has an inverse effect on the curves level. Moreover, the effect of diameter is more obvious at higher volume fraction of CNTs.

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Mechanical and Aerospace Engineering, ICMAE2011

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Periodical:

Applied Mechanics and Materials (Volumes 110-116)

Pages:

1237-1244

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.110-116.1237

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Online since:

October 2011

Authors:

Seyyed Mohammad Reza Khalili, A. Haghbin

Keywords:

Carbon Annotates, Multi-Scale Modeling, Nanomechanics, Tensile Behavior

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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