Elastic response of a carbon nanotube fiber reinforced polymeric composite: A numerical and experimental study |
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| Authors: | Mandar Kulkarni David Carnahan Kapil Kulkarni Dong Qian Jandro L Abot |
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| Affiliation: | 1. Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati, Cincinnati, OH 45221-0070, United States;2. NanoLab Inc., 55 Chapel Street, Newton, MA 02458, United States;3. Department of Mechanical Engineering, University of Cincinnati, Cincinnati, OH 45221-0072, United States;1. Department of Solid Mechanics and Design, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia – UTM, 81310 UTM Skudai, Johor, Malaysia;2. Department of Mechanical Engineering, The University of Birjand, Birjand, Iran;3. Griffith School of Engineering, Griffith University, Gold Coast Campus, Southport 4222, Australia;4. School of Engineering, The University of Newcastle, Callaghan, New South Wales 2308, Australia;1. Department of Engineering Mechanics, Beijing University of Technology, Beijing 100124, China;2. Department of Civil and Architectural Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong;1. Department of Aerospace Engineering, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Ave, Tehran, 15875-4413, Iran;2. Iranian Space Research Centre, Tehran, 14597-77511, Iran;1. Department of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran;2. Department of Mechanical Engineering, University of Guilan, Rasht, Iran |
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| Abstract: | Premature failure due to low mechanical properties in the transverse direction to the fiber constitutes a fundamental weakness of fiber reinforced polymeric composites. A solution to this problem is being addressed through the creation of nanoreinforced laminated composites where carbon nanotubes are grown on the surface of fiber filaments to improve the matrix-dominated composite properties. The carbon nanotubes increase the effective diameter of the fiber and provide a larger interface area for the polymeric matrix to wet the fiber. A study was conducted to numerically predict the elastic properties of the nanoreinforced composites. A multiscale modeling approach and the Finite Element Method were used to evaluate the effective mechanical properties of the nanoreinforced laminated composite. The cohesive zone approach was used to model the interface between the nanotubes and the polymer matrix. The elastic properties of the nanoreinforced laminated composites including the elastic moduli, the shear modulus, and the Poisson’s ratios were predicted and correlated with iso-strain and iso-stress models. An experimental program was also conducted to determine the elastic moduli of the nanoreinforced laminated composite and correlate them with the numerical values. |
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