| 纤维断裂引起层合板多向刚度减缩的细观力学模型 |
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| 引用本文： | 姚卫星,翟洪军.纤维断裂引起层合板多向刚度减缩的细观力学模型[J].南京航空航天大学学报,2002,34(5):413-417. |
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| 作者姓名： | 姚卫星 翟洪军 |
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| 作者单位： | 南京航空航天大学航空宇航学院,南京,210016 |
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| 基金项目： | 航空基础科学基金 (编号 :0 0 B5 2 0 1 5 )的资助 |
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| 摘 要： | 研究了纤维断裂对连续纤维增强树脂基复合材料刚度的影响，建立了分析这种影响的细观力学模型，给出了描述纤维断裂引起的单向板四个弹性常数减缩的表达式。分析结果表明：在纤维断裂为主损伤控制模式阶段，单向板的四个弹性常数随着纤维断裂百分数增加而线性下降。
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| 关 键 词： | 复合材料 纤维断裂 细观力学模型 刚度 |
| 文章编号： | 1005-2615(2002)05-0413-05 |
| 修稿时间： | 2001年11月22 |
Meso-Mechanical Analysis of Stiffness Reduction of FRP Laminates by Fibre Breaking |
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| Yao Weixing Zhai Hongjun College of Aerospace Engineering,Nanjing University of Aeronautics & Astronautics Nanjing ,P.R.China.Meso-Mechanical Analysis of Stiffness Reduction of FRP Laminates by Fibre Breaking[J].Journal of Nanjing University of Aeronautics & Astronautics,2002,34(5):413-417. |
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| Authors: | Yao Weixing Zhai Hongjun College of Aerospace Engineering Nanjing University of Aeronautics & Astronautics Nanjing PRChina |
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| Institution: | Yao Weixing Zhai Hongjun College of Aerospace Engineering,Nanjing University of Aeronautics & Astronautics Nanjing 210016,P.R.China |
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| Abstract: | Fibre breakage is one of the main damage modes for the fibre reinforced plastics during cyclic loading, which leads to stiffness reduction of the laminates. A meso mechanical model is used to describe the stiffness reduction of the laminates due to fibre breakage. Based on this model the expressions of the stiffness reduction of a lamina are obtained. Analytical results show that the stiffness of the lamina is linearly reduced with the friction of the fibre breakage when the fibre breakage is the main damage mode. |
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| Keywords: | composites fibre breakage meso mechanical model stiffness reduction |
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