A simplified approach for heat conduction analysis of CNT-based nano-composites

2020-02-02 02:11:34

based heat carbon CNT conduction

责任者: Jianming Zhang;Masataka Tanaka;Toshiro Matsumoto 单位: Dept. of Mech. Syst. Eng., Shinshu Univ., Nagano, Japan 来源出处: Computer Methods in Applied Mechanics and Engineering(Comput. Methods Appl. Mech. Eng. (Netherlands)),2004/12/24,193(52):5597-609 摘要: The unique thermal properties of carbon nanotubes (CNT) may offer possibilities for the development of fundamentally new composite materials. Numerical simulation for such CNT-based composites usually demands extremely large and expensive computer resources. In preliminary computations, temperature distribution in the CNT has been turned out to be almost uniform, due to its exceptionally high heat conductivity in comparison with the host polymer. This feature allows us to considerably simplify the mathematical model of the heat conduction in CNT composites. In the proposed approach, the host polymer is the only domain which is modeled, while the CNTs are treated as heat superconductors with constant and unknown temperatures constrained at their surfaces. As a result, the computational scale is reduced substantially. The hybrid boundary node method is applied in this study. Numerical examples clearly demonstrate the efficiency and sufficient accuracy of the proposed approach. [All rights reserved Elsevier] 关键词: carbon nanotubes;heat conduction;nanocomposites;numerical analysis;thermal conductivity;heat conduction analysis;CNT based nanocomposites;thermal properties;carbon nanotubes;numerical simulation;heat conductivity;heat superconductors;hybrid boundary node method;temperature distribution;heat conduction