| 稠密颗粒增强复合材料应变分布规律和刚度张量 |
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| 引用本文： | 王治国,李敏,吴炜,梁乃刚.稠密颗粒增强复合材料应变分布规律和刚度张量[J].中国航空学报,2001,14(4). |
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| 作者姓名： | 王治国 李敏 吴炜 梁乃刚 |
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| 作者单位： | State Key Lab. of Nonlinear Mechanics，Institute of Mechanics，CAS，Beijing\ 100080，China |
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| 基金项目： | NationalNaturalScienceFoundation( 19872 0 6 5 19732 0 6 0 )，ChineseAcademyofSciencesFoundation(KGCX1 11) |
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| 摘 要： | 针对高体积份数、随机分布、等轴状颗粒增强复合材料 ,研究了材料的应变分布规律 ,给出了基体和增强体应变平均值与材料微观结构参数之间的定量关系。结果表明 ,除应变平均值外 ,应变涨落是影响刚度张量的另一个重要因素 ,研究了应变涨落与材料微观结构参数之间的关系 ,并推导出了复合材料的刚度张量。与实验结果和以往的理论比较 ,预测结果与实验结果吻合良好
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| 关 键 词： | 颗粒增强复合材料 应变分布规律 应变涨落 刚度张量 |
Strain Regularity and Stiffness Tensor of Reinforcers in Dense Particle Reinforced Composites |
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| WANG Zhi-guo,LI Min,WU Wei,LIANG Nai-gang.Strain Regularity and Stiffness Tensor of Reinforcers in Dense Particle Reinforced Composites[J].Chinese Journal of Aeronautics,2001,14(4). |
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| Authors: | WANG Zhi-guo LI Min WU Wei LIANG Nai-gang |
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| Abstract: | Based on the study of strain distribution in composites reinforced with high volume fraction, randomly distributed particles, the quantitative relation between the average strains of matrix /reinforcers and microstructure parameters of the composite is investigated. It is revealed that besides the average strains, strain fluctuation is also an important factor affecting the stiffness modulus of the composites. The relation between the strain fluctuation and microstructure parameters of the composite is also obtained to derive the stiffness tensor. The theoretical prediction is favorably compared with experimental results. |
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| Keywords: | particle reinforced composites strain regularity strain fluctuation stiffness tensor |
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