| 用均匀化方法预测单向纤维复合材料热膨胀行为 |
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| 引用本文： | 刘书田,程耿东.用均匀化方法预测单向纤维复合材料热膨胀行为[J].复合材料学报,1997,14(1):76-82. |
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| 作者姓名： | 刘书田 程耿东 |
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| 作者单位： | 大连理工大学工程力学研究所, 大连 116024 |
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| 摘 要： | 本文利用均匀化方法研究了单向纤维复合材料的热膨胀行为。建立了热膨胀系数与组分材料性能、体分比之间的关系,得到了纤维/基体性能比值对横向热膨胀系数的影响比对纵向系数的影响更重要的结论。通过均匀化方法和四种已有的理论方法之间的相互比较,以及同实验值对比,分析了各理论方法的精度,验证了均匀化方法的可靠性。
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| 关 键 词： | 热膨胀系数 均匀化方法 复合材料 预测 |
| 收稿时间： | 1994-08-29 |
| 修稿时间： | 1996-01-04 |
PREDICTION OF COEFFICIENTS OF THERMAL EXPANSION FOR UNIDIRECTIONAL COMPOSITES USING HOMOGENIZATION METHOD |
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| Liu Shutian,Cheng Gengdong.PREDICTION OF COEFFICIENTS OF THERMAL EXPANSION FOR UNIDIRECTIONAL COMPOSITES USING HOMOGENIZATION METHOD[J].Acta Materiae Compositae Sinica,1997,14(1):76-82. |
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| Authors: | Liu Shutian Cheng Gengdong |
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| Affiliation: | Dalian University of Technology, Dalian 116024 |
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| Abstract: | The coefficients of thermal expansion of unidirectional fiber reinforced composites are investigated by use of homogenization method. The relationship between coefficients of thermal expansion and component properties and volume fractions is determined. A conclusion is obtamed that the influence of the property ratios of fiber and matrix on the transverse coefficients of thermal expansion is more important than on the longitudinal ones. The predictions from homog-enization method and four other analytical methods are compared with each other,and with experimental data. The assessment of validity of these different methods is made and the reliability of homogenization method is verified. |
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| Keywords: | coefficient of thermal expansion homogenization method unidirectional composites prediction |
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