| 复合材料薄板冲击后压缩性能研究 |
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| 引用本文： | 丁聪,李萍,关志东,李星.复合材料薄板冲击后压缩性能研究[J].沈阳航空工业学院学报,2011,28(5):38-42. |
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| 作者姓名： | 丁聪 李萍 关志东 李星 |
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| 作者单位： | 上海飞机设计研究院结构设计研究部,上海,233000 |
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| 摘 要： | 原有的冲击后压缩试验夹具无法防止薄板的整体失稳，为了获得正确的破坏模式，通过有限元分析设计了新的试验夹具。试验证明了新夹具的有效性，没有改变试件原有的应力状态，可以获得与标准试验相同的破坏模式。对比了不同铺层比和不同材料复合材料薄板的冲击后压缩性能。试验结果表明铺层比对冲击后压缩强度的影响很大，不同铺层比层合板的冲击后压缩破坏应变基本一致，织物铺叠层合板的CAI性能略与单向带铺叠的层合板差别不明显。
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| 关 键 词： | 冲击后压缩 夹具 失稳 复合材料薄板 |
Compression after impact performance of thin composite laminates |
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| DING Cong,LI Ping,GUANG Zhi-dong,LI Xing.Compression after impact performance of thin composite laminates[J].Journal of Shenyang Institute of Aeronautical Engineering,2011,28(5):38-42. |
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| Authors: | DING Cong LI Ping GUANG Zhi-dong LI Xing |
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| Institution: | DING Cong1,LI Ping1,GUANG Zhi-dong2,LI Xing2(1.Shanghai Aircraft Design & Research Institute,Shanghai 200232,2.Beijing University of Aeronautics and Astronautics,Beijing 100191) |
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| Abstract: | Since standard compression-after-impact testing device can't prevent global buckling of thin composite specimen,new testing device is designed through finite element analysis to obtain acceptable failure mode.Experimentation proves that compression stress state and failure mode are not modified by the presence of the new device.The compression-after-impact performance of various composite thin laminates which have different lay-up ratio and material is examined.Results show that CAI strength is strongly inf... |
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| Keywords: | compression-after-impact device bulking thin laminate |
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