| 多轴向经编增强复合材料低速冲击下能量吸收特性的研究 |
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| 引用本文： | 周荣星,李炜,冯勋伟. 多轴向经编增强复合材料低速冲击下能量吸收特性的研究[J]. 东华大学学报(自然科学版), 2002, 28(5): 34-38 |
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| 作者姓名： | 周荣星 李炜 冯勋伟 |
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| 作者单位： | 东华大学纺织学院,上海,200051 |
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| 基金项目： | 教育部科学技术研究重点项目资助 |
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| 摘 要： | 从多轴向经编增强结构本身的特点出发，利用我们自己建立的一套落锤冲击试验装置，对玻璃纤维/DTY多轴向经编增强玻璃纤维/环氧树脂复合材料板进行了低速低能量的冲击试验研究。通过传感器技术及其相应的信号处理装置记录落锤冲击试验过程中速度随时间变化曲线，直接计算冲击动能和材料所吸收的冲击能量，通过数学处理得到各种冲击试样的能量吸收系数，对多轴向经编结构复合材料的冲击失效过程和影响能量吸收特性的因素进行试验研究和分析。
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| 关 键 词： | 多轴向经编增强复合材料 落锤冲击试验系统 低速冲击 能量吸收特性 针织 |
| 修稿时间： | 2001-07-06 |
Experimental Study on the Energy Absorption Properties of MWK Fabric Reinforced Composite Plates Subjected to Low Velocity Impact |
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| Zhou Rongxing,Li Wei,Feng Xunwei. Experimental Study on the Energy Absorption Properties of MWK Fabric Reinforced Composite Plates Subjected to Low Velocity Impact[J]. Journal of Donghua University, 2002, 28(5): 34-38 |
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| Authors: | Zhou Rongxing Li Wei Feng Xunwei |
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| Abstract: | The energy absorption properties of MWK fabric reinforced composite plates were studied in this paper. Low velocity and low energy impact experiments were carried out for MWK fabric and Glassfibre/Epoxy composite plate, by setting up a drop weight impact test system. Using this system, the drop weight velocity during impacting was obtained and recorded by transducer and corresponding signal processing system. Based on the velocity record, the impact energy and dissipated impact energy (energy absorption) were easily obtained. The influence of structure parameters of MWK fabric on the impact behavior and energy absorption properties was then investigated. |
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| Keywords: | multiaxile warp knitted fabric composites drop weight test system low velocity impact impact energy absorption |
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