| 考虑面内载荷的复合材料层合板冲击性能 |
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| 引用本文： | 王计真,刘小川.考虑面内载荷的复合材料层合板冲击性能[J].复合材料学报,2020,37(8):1868-1874. |
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| 作者姓名： | 王计真 刘小川 |
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| 作者单位： | 中国飞机强度研究所 结构冲击动力学航空科技重点实验室，西安 710065 |
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| 基金项目： | 航空科学基金(2016ZA23009) |
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| 摘 要： | 考虑面内初始载荷作用，开展复合材料层合板高速冲击响应与损伤特性研究。设计一种面内拉伸/压缩/剪切初始载荷施加装置，结合气炮试验装置，提出一种初始载荷复合材料高速冲击试验方法，针对X850/IM+和M21C/IMA两种牌号复合材料层合板开展高速冲击试验。结果表明:面内初始载荷对复合材料层合板高速冲击响应和损伤特性有显著影响；相比无初始载荷冲击情况，面内拉伸载荷作用提高了结构抗弯刚度，使冲击剩余速度提高，穿透速度降低，分层损伤面积减小；而面内压缩载荷则反之。
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| 关 键 词： | 面内初始载荷 复合材料层合板 高速冲击试验 穿透速度 分层损伤面积 |
| 收稿时间： | 2019-09-25 |
Impact resistance of composite panels under in-plane preloading |
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| Affiliation: | Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi’an 710065, China |
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| Abstract: | Taking the effect of the in-plane preloading into consideration, the impact behavior of composite panels was studied. A kind of in-plane loading device was designed to apply tension, compression and shear loads. The high-speed impact test method of preloaded composite structures was proposed with the gas gun and the in-plane loading device. Then high-speed impact tests for X850/IM+ and M21C/IMA composite panels were conducted. The test results show that the in-plane preload has a significant influence on the impact response. Compared with the non-preloaded impact process, the in-plane pre-tension raises the structural bending stiffness and the residual speed, resulting in a decrease of the penetration velocity and delamination area, while the effect of the in-plane pre-compression is opposite. |
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