| 等效介质理论数值方法应用于随机取向纤维复合材料的杨氏模量 |
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| 引用本文： | 区焕文 徐稳林. 等效介质理论数值方法应用于随机取向纤维复合材料的杨氏模量[J]. 复合材料学报, 1994, 11(4): 55-60 |
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| 作者姓名： | 区焕文 徐稳林 |
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| 作者单位： | 香港理工学院应用物理系及材料研究中心 |
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| 摘 要： | 本文运用了等效介质理论数值方法[4],计算单向纤维增强复合材料的弹性常数,进而透过Christensen & Waals[3]的一套平均公式,计算二维及三维随机取向纤维复合材料的杨氏模量,以探讨等效介质理论对此类材料的适用性.计算结果与基于Halpin-Tsai[8]式及Christensen[7]式的结果甚为相近,与实验值也有很好的符合.
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| 关 键 词： | 等效介质理论数值方法 随机取向纤维复合材料 杨氏模量 |
| 收稿时间： | 1993-12-12 |
NUMERICAL EFFECTIVE MEDIUM THEORY CALCULATIONS OF THE YOUNG’s MODULUS OF RANDOMLY ORIENTED FIBRE COMPOSITES |
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| W.M.Au, W.L.Tsui, F.G.Shin. NUMERICAL EFFECTIVE MEDIUM THEORY CALCULATIONS OF THE YOUNG’s MODULUS OF RANDOMLY ORIENTED FIBRE COMPOSITES[J]. Acta Materiae Compositae Sinica, 1994, 11(4): 55-60 |
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| Authors: | W.M.Au W.L.Tsui F.G.Shin |
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| Affiliation: | Department of Applied Physics and Materials Research Centre Hong Kong Polytechnic, Hung Hom, Hong Kong |
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| Abstract: | Numerical calculation of the elastic engineering constants of unidirectional fibre composites based on an effective medium theory (EMT)[4] is here employed to find the Young's modulus of 2-dimensional as well as 3-dimensional randomly oriented fibre composites by a method of geometrical average over orientations due to Christensen & Waals[3].The results compare faverably with similar calculations based on theories of Halpin-Tsai[8] and Christensen[7],and show good conformity with experimental data.Thus it is shown that EMT is applicable to the calculation of elastic properties of randomly oriented fibre composites. |
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| Keywords: | numerical effective medium theory calculations randomly oriented fiber composites Young’s modulus |
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