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Article

Multiscale Model to Study the Effect of Interfaces in Carbon Nanotube-Based Composites

[+] Author and Article Information
S. Namilae, N. Chandra

Department of Mechanical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32301

J. Eng. Mater. Technol. 127(2), 222-232 (Apr 06, 2005) (11 pages) doi:10.1115/1.1857940 History: Received June 29, 2004; Revised October 11, 2004; Online April 06, 2005
Copyright © 2005 by ASME
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Figures

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Illustration of the cohesive zone model for interfaces
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Atomic description of an interface
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Schematic of the boundary conditions applied in the pullout test simulation
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Reaction force versus displacement for a typical hydrocarbon attachment
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Variation of the reaction force along the length of a (10,10) CNT with 85 chemical attachments at different simulation times
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Schematic showing the variation of reaction force with time evolution
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Traction-displacement plots obtained from atomic simulation are shown in (a) and (b). These are extrapolated to obtain the cohesive zone traction-displacement relations as in (c) and (d).
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Typical mesh used in the finite element simulations
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Variation of composite Young’s modulus with volume % CNT for different interfacial strengths
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Variation of composite Young’s modulus with fiber stiffness for different interfacial strengths
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Variation of composite Young’s modulus with matrix stiffness for different interfacial strengths

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