| 纤维增强复合材料弹性常数测定的平面声波相速法研究 |
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| 引用本文： | 赵清望,夏定海.纤维增强复合材料弹性常数测定的平面声波相速法研究[J].上海理工大学学报(社会科学版),1985(1). |
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| 作者姓名： | 赵清望 夏定海 |
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| 作者单位： | 上海机械学院机械工程系
(赵清望)，上海机械学院机械工程系(夏定海) |
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| 摘 要： | 本文把纤维增强复合材料视为宏观均匀正交各向异性物体,应用平面声波的Christoffel方程求出平面声波的相速度与各弹性常数之间的关系式,若以实验方法测得平面声波的相速度,则可用这些关系式求出各弹性常数。作者根据这个原理,用实验方法测定了钢、玻璃钢、玻璃纤维——环氧、碳纤维——环氧四种材料的弹性常数,并与共振法进行比较。文末提出了此方法的某些特点,以及改进实验的设想。
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A Research in Phase Velocity Method of Plane Wave to Determine the Elastic Constants for Fiber Reinforced Composite Materials |
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| Zao Qingwang Xia Dinghai.A Research in Phase Velocity Method of Plane Wave to Determine the Elastic Constants for Fiber Reinforced Composite Materials[J].Journal of University of Shanghai For Science and Technilogy(Social Science),1985(1). |
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| Authors: | Zao Qingwang Xia Dinghai |
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| Institution: | Zao Qingwang Xia Dinghai |
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| Abstract: | In the present paper, the authors regard fiber reinforced composite materials as macroscopical homogeneous orthotropic body. By means of Christoffel's equation of plane wave, the relationship formulas between the phase velocities of plane wave and the elastic constants are determined. If the phase velocities are measured with the help of the experimental method, the elastic constants can be obtained by the formulas. Based on this principle, the elastic constants are determined with the experimental method for four kinds of materials. They are: steel, GRP laminate, GRP lamina and carbon fiber-epoxy lamina. A comparison is made between the experimental method and the resonance method. Finally the characteristics of the phase velocity method are dealt with briefly and some proposals to improve the experiment are also suggested. |
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| Keywords: | composite materials materials testing elastic moduli |
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