| 复合材料机匣冲击后的力学性能分析 |
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| 引用本文： | 崔海坡,温卫东.复合材料机匣冲击后的力学性能分析[J].航空动力学报,2008,23(1):50-54. |
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| 作者姓名： | 崔海坡 温卫东 |
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| 作者单位： | 1. 上海理工大学,医疗器械学院,上海,200093
2. 南京航空航天大学,能源与动力学院,南京,2l00l6 |
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| 摘 要： | 应用三维逐渐累积损伤理论及有限元分析技术,对复合材料机匣的冲击性能及冲击后在静载工况下的力学性能进行了分析.结果表明,冲击后机匣内部会产生基体开裂、基体挤压破坏、分层和纤维断裂等微观损伤;对于所研究的机匣,当冲击能超过26 J后,在给定的静载工况下,其冲击损伤会大面积扩展.
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| 关 键 词： | 航空、航天推进系统 冲击 复合材料 机匣 逐渐损伤 |
| 文章编号： | 1000-8255(2008)01-0050-05 |
| 收稿时间： | 2006/12/21 0:00:00 |
| 修稿时间： | 2006年12月21 |
Analysis of mechanical properties of composite case after impact |
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| CUI Hai-po and WEN Wei-dong.Analysis of mechanical properties of composite case after impact[J].Journal of Aerospace Power,2008,23(1):50-54. |
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| Authors: | CUI Hai-po and WEN Wei-dong |
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| Institution: | College of Medical Devices, University of Shanghai for Science and Technology, Shanghai 200093, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | A 3D progressive damage model and finite element method were used to analyze the impact properties and mechanical properties of composite case after impact under static loading.The matrix-cracking,matrix-crashing,delamination,and fiber breakage may occur in the case after impact.When the impact energy exceeds 26 J,the impact damage can spread rapidly under the given static loading. |
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| Keywords: | aerospace propulsion system impact composite case progressive damage |
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