| 飞灰空心微珠/聚丙烯复合材料的弹性模量预测 |
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| 引用本文： | 曹飞龙,李焕喜,沈志刚.飞灰空心微珠/聚丙烯复合材料的弹性模量预测[J].北京航空航天大学学报,2005,31(6):678-681. |
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| 作者姓名： | 曹飞龙 李焕喜 沈志刚 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院, 北京 100083 |
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| 摘 要： | 基于三相球自洽模型和Mori-Tanaka方法,首先给出了计算含多相球形空心夹杂复合材料有效体积模量和有效剪切模量的一般公式,然后计算了飞灰空心微珠/聚丙烯复合材料的有效弹性模量随微珠含量及尺寸的变化规律.计算结果与实验结果吻合良好,表明:对于给定种类的空心微珠,微珠的含量及其大小是决定复合材料弹性模量的主要因素,微珠内压对复合材料弹性模量的影响可忽略不计.
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| 关 键 词： | 树脂基复合材料 飞灰空心微珠 弹性模量 |
| 文章编号： | 1001-5965(2005)06-0678-04 |
| 收稿时间： | 2004-02-11 |
| 修稿时间： | 2004年2月11日 |
Modulus prediction of a polymer matrix composite reinforced with fly-ash hollow microspheres |
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| Cao Feilong,Li Huanxi,SHEN Zhigang.Modulus prediction of a polymer matrix composite reinforced with fly-ash hollow microspheres[J].Journal of Beijing University of Aeronautics and Astronautics,2005,31(6):678-681. |
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| Authors: | Cao Feilong Li Huanxi SHEN Zhigang |
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| Institution: | School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Based on a self-consistent three-phase model and Mori-Tanaka theo ry, general expressions are deduced to calculate the effective volume modulus an d the effective shear modulus of a composite containing several sorts of hollow microspherical reinforcements. Then, the effective modulus of a polymer matrix c omposite reinforced with fly-ash hollow microspheres is predicted, as a functio n of the volume fraction, the average size and the inner pressure of the microsph eres. The calculated results agree with experimental measurements satisfactorily , suggesting that the modulus of the composite is determined mainly by the volum e fraction and the average size of the microspheres, while the effect of their i nner pressure is negligible. |
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| Keywords: | polymer matrix composite fly-ash hollow microspheres modulus |
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