| 碳纤维增强树脂基复合材料中激光脉冲能量对超声L波的影响 |
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| 引用本文： | 刘松平,刘菲菲,郭恩明,李乐刚,杜丽婷.碳纤维增强树脂基复合材料中激光脉冲能量对超声L波的影响[J].航空制造技术,2007,5(11):83-85. |
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| 作者姓名： | 刘松平 刘菲菲 郭恩明 李乐刚 杜丽婷 |
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| 作者单位： | 北京航空制造工程研究所 |
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| 摘 要： | 利用不同激光脉冲与碳纤维树脂基复合材料相互作用产生的瞬态热效应激发超声纵波(L波),分析激光脉冲能量对L波的影响.试验结果表明,激励声波的幅度直接与脉冲的能量相关,在高能量区的纵波幅度明显比在低能量区的大,缺陷的存在明显影响L波的存在和幅度.
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| 关 键 词： | 激光超声 无损检测 复合材料 碳纤维增强 碳纤维树脂基复合材料 激光脉冲能量 超声纵波 影响 Fiber Reinforced Composites Carbon Ultrasonic Energy Laser Pulse 存在 缺陷 低能量 纵波幅度 高能量 相关 声波 激励 结果 试验 |
Effect of Laser Pulse Energy on Ultrasonic L-Wave in Carbon Fiber Reinforced Composites |
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| Liu Songping Liu Feifei Guo Enming.Effect of Laser Pulse Energy on Ultrasonic L-Wave in Carbon Fiber Reinforced Composites[J].Aeronautical Manufacturing Technology,2007,5(11):83-85. |
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| Authors: | Liu Songping Liu Feifei Guo Enming |
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| Affiliation: | Liu Songping Liu Feifei Guo Enming |
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| Abstract: | The ultrasonic longitude(L)wave is aroused by the transient hot effect which is generated by the interaction between different laser pulse and car- bon fiber reinforced composites(CFRCs),and the ef- fect of laser pulse energy on L-wave is analyzed.The experimental results demonstrate that the amplitude of L -wave is directly dependent on laser pulse energy,which increases more remarkably in the range of high laser pulse energy region compared with that in the low ener- gy region.The existence of defects in CFRCs significantly affects the occurrence and amplitude of L-wave. |
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| Keywords: | Laser ultrasound Nondestructive testing Composites |
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