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  2013, Vol. 34 Issue (2): 181-187    
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2.5维自愈合C/SiC复合材料弹性性能预测
梁仕飞1,矫桂琼2
1. 西北工业大学
2. 西安西北工业大学169信箱工程力学系
Prediction of elastic properties of 2.5D self-healing C/SiC composite
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摘要 试验研究了2.5维自愈合C/SiC复合材料(2.5D-C/SiC)的面内弹性性能。根据复合材料的细观结构特点,建立了2.5D-C/SiC的弹性模量预测模型。计算结果与试验值吻合较好,证明了模型及计算方法的正确性。通过改变经纱编织角、纤维束中纤维数以及经纱穿过纬纱的层数,得到了经纱体积含量、纬纱体积含量、纤维总体积含量以及弹性模量随上述参数的变化规律。保持碳化硅与碳化硼总体积分数不变,改变碳化硼与碳化硅的体积比α,得到了弹性模量随α的变化关系。
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关键词 2.5维自愈合C/SiC复合材料弹性性能预测体积分数变化规律2.5D self-healing C/SiC composite elastic properties prediction volume fraction variable regularity    
Abstract: The plane elastic modulus of self-healing 2.5D C/SiC composite (2.5D-C/SiC ) were studied by experiment. According to the micro-structure characteristic of composite, the prediction model of elastic modulus of 2.5D-C/SiC was founded. The results agreed with the experiments very well, the model and calculation method were proved to be right. As the parameters, including knit angle of warp, the number of fiber in fiber bundle and the number of layers the warp crossed, increased respectively, the variation tendency of four parameters, including the volume fraction of weft, the volume fraction of warp, the volume fraction of the whole fiber and the elastic modulus, were obtained. As the total volume fraction of silicon carbide and boron carbide was a constant, the variation tendency of elastic modulus was obtained with the ratio of boron carbide and silicon carbide (α) increasing.
收稿日期: 2011-12-11      出版日期: 2013-04-28
通讯作者: 梁仕飞     E-mail: 105814513@qq.com
引用本文:   
梁仕飞 矫桂琼. 2.5维自愈合C/SiC复合材料弹性性能预测[J]. , 2013, 34(2): 181-187.
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