| 三维机织复合材料的细观力学分析 |
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| 引用本文： | 周光明,周储伟,王新峰.三维机织复合材料的细观力学分析[J].南京航空航天大学学报(英文版),2004,21(3):163-167. |
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| 作者姓名： | 周光明 周储伟 王新峰 |
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| 作者单位： | 南京航空航天大学航空宇航学院,南京,210016,中国 |
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| 基金项目： | 江苏省自然科学基金 ( BK2 0 0 1 0 5 2 )资助项目~~ |
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| 摘 要： | 建立了一种三维机织复合材料的细观力学模型。模型包括两相：一相为纤维束，另一相为基体材料或横向的纤维束。该模型考虑了纤维束弯曲所引起的附加剪切。讨论了根据织造参数确定机织复合材料细观结构的方法。将上述理论用于一种实际的碳／环氧三维机织复合材料的分析，研究了细观应力分布的特点，并用平均化方法得到了材料宏观的模量，分析结果与试验数据吻合良好。
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| 关 键 词： | 复合材料 细观力学模型 纤维束 细观结构 模量 剪切 参数确定 吻合 分析 三维 |
MICRO MECHANICAL ANALYSIS OF 3-D WOVEN COMPOSITES |
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| ZHOU Guang-ming,ZHOU Chu-wei,WANG Xin-feng.MICRO MECHANICAL ANALYSIS OF 3-D WOVEN COMPOSITES[J].Transactions of Nanjing University of Aeronautics & Astronautics,2004,21(3):163-167. |
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| Authors: | ZHOU Guang-ming ZHOU Chu-wei WANG Xin-feng |
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| Abstract: | A micro mechanical model is carried out to predict micro stresses and macro elastic properties of 3-D woven composites. A unit cell is composed of two phases. One is fiber yarn and the other is resin or fiber yarn in transverse. The additional shearing introduced by bending of fiber yarn is considered. The method to determine the microstructure is also discussed. This model is applied to the analysis of a 3-D woven graphite/epoxy composite. Micro stresses of the cell are studied, and then macro modulus is obtained by employing the average method. The predictions agree well with experimental results. |
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| Keywords: | micro mechanics 3-D woven composites Galerkin method |
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