| 平纹机织多元多层碳化硅陶瓷基复合材料的等效弹性模量预测 |
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| 引用本文： | 许英杰,张卫红,杨军刚,汪海滨.平纹机织多元多层碳化硅陶瓷基复合材料的等效弹性模量预测[J].航空学报,2008,29(5):1350-1355. |
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| 作者姓名： | 许英杰 张卫红 杨军刚 汪海滨 |
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| 作者单位： | 西北工业大学,中法并行工程联合实验室,高性能计算中心,现代设计与集成制造技术教育部重点实验室,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金，航空科学基金，国家"973"基础研究 |
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| 摘 要： | 针对平纹机织多元多层碳化硅陶瓷基复合材料，按照“从底向上”的顺序考虑了纤维丝/界面/基体尺度以及纤维束/基体/涂层尺度下的微结构有限元模型。采用能量法依次进行了两个尺度上的等效性能计算，首先在纤维丝/界面/基体的尺度上计算了纤维束的等效弹性参数，然后将这些参数代入到纤维束/基体/涂层尺度微结构模型中，计算得到复合材料的整体弹性常数。数值计算结果与实验结果吻合较好，验证了所提计算方法以及模型的有效性。
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| 关 键 词： | 碳化硅陶瓷基复合材料 平纹机织 多元多层 能量法 多尺度分析 数值预测 |
Prediction of Effective Elastic Modulus of Plain Weave Multi-phase and Multi-layer Silicon Carbide Ceramic Matrix Composite |
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| Xu Yingjie,Zhang Weihong,Yang Jungang,Wang Haibin.Prediction of Effective Elastic Modulus of Plain Weave Multi-phase and Multi-layer Silicon Carbide Ceramic Matrix Composite[J].Acta Aeronautica et Astronautica Sinica,2008,29(5):1350-1355. |
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| Authors: | Xu Yingjie Zhang Weihong Yang Jungang Wang Haibin |
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| Institution: | Xu Yingjie,Zhang Weihong,Yang Jungang,Wang Haibin(Sino-French Laboratory of Concurrent Engineering,High-performance Computer Center,The KeyLaboratory of Contemporary Design , Integrated Manufacturing,NorthwesternPolytechnical University,Xi\'an 710072,China) |
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| Abstract: | The bottom-up multi-scale finite element modeling based on the sequential consideration of the fiber/interface/matrix scale and the tow/matrix/coat scale is employed to study the plain weave multi-phase and multi-layer silicon carbide ceramic matrix composite. The strain energy-based method is adopted for the multi-scale analysis and evaluation of effective properties. First, the effective properties of tows are computed on the fiber/interface/matrix scale. Then these properties are incorporated into the mi... |
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| Keywords: | silicon carbide ceramic matrix composite plain weave multi-phase and multi-layer strain energy-based method multi-scale analysis numerical prediction |
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