| C/C复合材料制备过程中的有效弹性模量预报 |
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| 引用本文： | 卢琦,梁军,夏明凯,胡丽娜.C/C复合材料制备过程中的有效弹性模量预报[J].哈尔滨工业大学学报,2011(Z1):106-110. |
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| 作者姓名： | 卢琦 梁军 夏明凯 胡丽娜 |
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| 作者单位： | 哈尔滨工业大学复合材料与结构研究所 |
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| 基金项目： | 国家自然科学基金(N10772060,90916027);黑龙江省杰出青年基金(JC2006-13) |
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| 摘 要： | 为了对C/C复合材料在不同温度条件下的制备工艺提供实际指导,本文根据沥青基先驱体C/C复合材料制备过程中化学反应特征,利用Arrhenius方程建立了C/C复合材料液相制备工艺力学模型.根据制备工艺中各组分相的体积分数变化,结合均匀化方法和细观力学方法计算和分析了制备工艺过程中材料基体有效弹性模量及其变化规律,并且利用有限元方法预报了制备成型后的细编穿刺C/C复合材料的整体有效弹性模量.
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| 关 键 词： | 制备工艺 力学模型 组分相 碳基体 弹性模量 |
Prediction of effective elastic modulus of C/C composites during manufacturing process |
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| LU Qi,LIANG Jun,XIA Ming-kai,HU Li-na.Prediction of effective elastic modulus of C/C composites during manufacturing process[J].Journal of Harbin Institute of Technology,2011(Z1):106-110. |
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| Authors: | LU Qi LIANG Jun XIA Ming-kai HU Li-na |
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| Affiliation: | (Center for Composite Materials and Structures,Harbin Institute of Technology,Harbin 150080,China) |
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| Abstract: | To guide the actual manufacturing process of C/C composites under different temperature,the mechanical model for liquid phase formulation process of the composites is established by using Arrhenius equation,which is based on the chemical reaction in the manufacturing of the pitch precursor C/C composites.The variation of elastic modulus of matrix with the change of volume fraction for each component during the manufacturing is calculated and analyzed by using the homogenization method and stiffness average method.The effective elastic modulus of the fine-woven pierced C/C composites is also predicted by finite element method. |
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| Keywords: | manufacturing process mechanical model components carbon matrix elastic modulus |
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