| Investigation on the Thermal Conductivity of 3-Dimensional and 4-Directional Braided Composites |
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| 作者姓名： | Liu Zhenguo Zhang Haiguo Lu Zixing Li Diansen |
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| 作者单位： | Liu Zhenguo，Zhang Haiguo，Lu Zixing，Li Diansen Institute of Solid Mechanics，Beijing University of Aeronautics and Astronautics，Beijing，100083，China |
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| 摘 要： | It is vital to choose a factual and reasonable micro-structural model of braided composites for improving the calculating precision of thermal property of 3-D braided composites by finite element method (FEM). On the basis of new microstructure model of braided composites proposed recently, the model of FEM calculation for thermal conductivity of 3-dimennsional and 4-directional braided composites is set up in this paper. The curves of coefficient of effective thermal conductivity versus fiber volume ratio and interior braiding angle are obtained. Furthermore, comparing the results of FEM with the available experimental data,the reasonability and veracity of calculation are confirmed at the same time.
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| 关 键 词： | 辫成麻花状化合物 热量传导性 场致发射显微镜 三维四向编织碳 |
| 收稿时间： | 29 June 2006 |
| 修稿时间： | 2006-06-292007-04-26 |
Investigation on the Thermal Conductivity of 3-Dimensional and 4-Directional Braided Composites |
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| Liu Zhenguo Zhang Haiguo Lu Zixing Li Diansen.Investigation on the Thermal Conductivity of 3-Dimensional and 4-Directional Braided Composites[J].Chinese Journal of Aeronautics,2007,20(4):327-331. |
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| Authors: | Liu Zhenguo Zhang Haiguo Lu Zixing Li Diansen |
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| Institution: | Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, 100083, China |
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| Abstract: | It is vital to choose a factual and reasonable micro-structural model of braided composites for improving the calculating precision of thermal property of 3-D braided composites by finite element method (FEM). On the basis of new microstructure model of braided composites proposed recently, the model of FEM calculation for thermal conductivity of 3-dimennsional and 4-directional braided composites is set up in this paper. The curves of coefficient of effective thermal conductivity versus fiber volume ratio and interior braiding angle are obtained. Furthermore, comparing the results of FEM with the available experimental data, the reasonability and veracity of calculation are confirmed at the same time. |
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| Keywords: | 3-dimennsional and 4-directional braided composites thermal conductivity FEM Braided Composites Thermal Conductivity time comparing results available experimental data curves coefficient effective thermal conductivity fiber volume ratio interior braiding angle calculation paper basis microstructure |
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