A new finite element (FE) modeling method has been developed to investigate how the electrical-mechanical-thermal behavior of carbon nanotube (CNT)–reinforced polymer composites is affected by electron tunneling distances, volume fraction, and physically realistic tube aspect ratios. A representative CNT polymer composite conductive path was chosen from a percolation analysis to establish the three-dimensional (3D) computational finite-element (FE) approach. A specialized Maxwell FE formulation with a Fermi-based tunneling resistance was then used to obtain current density evolution for different CNT/polymer dispersions and tunneling distances. Analyses based on thermoelectrical and electrothermomechanical FE approaches were used to understand how CNT-epoxy composites behave under electrothermomechanical loading conditions.
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April 2013
Research-Article
Electrothermomechanical Modeling and Analyses of Carbon Nanotube Polymer Composites
M. A. Zikry
M. A. Zikry
Department of Mechanical and Aerospace Engineering,
North Carolina State University
,Raleigh, NC 27695-7910
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M. A. Zikry
Department of Mechanical and Aerospace Engineering,
North Carolina State University
,Raleigh, NC 27695-7910
Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received June 20, 2012; final manuscript received November 3, 2012; published online March 28, 2013. Assoc. Editor: Xi Chen.
J. Eng. Mater. Technol. Apr 2013, 135(2): 021014 (8 pages)
Published Online: March 28, 2013
Article history
Received:
June 20, 2012
Revision Received:
November 3, 2012
Citation
Xu, S., Rezvanian, O., and Zikry, M. A. (March 28, 2013). "Electrothermomechanical Modeling and Analyses of Carbon Nanotube Polymer Composites." ASME. J. Eng. Mater. Technol. April 2013; 135(2): 021014. https://doi.org/10.1115/1.4023912
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