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空军工程大学 信息与导航学院,陕西 西安,710077
收稿日期:2013-09-25,
修回日期:2013-11-06,
纸质出版日期:2014-08-25
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蒙文, 韩晓飞, 李云霞等. 激光辐照下尼龙纤维材料的热烧蚀规律[J]. 光学精密工程, 2014,22(8): 2014-2019
MENG Wen, HAN Xiao-fei, LI Yun-xia etc. Thermal ablation law of nylon materials under laser irradiation[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 2014-2019
蒙文, 韩晓飞, 李云霞等. 激光辐照下尼龙纤维材料的热烧蚀规律[J]. 光学精密工程, 2014,22(8): 2014-2019 DOI: 10.3788/OPE.20142208.2014.
MENG Wen, HAN Xiao-fei, LI Yun-xia etc. Thermal ablation law of nylon materials under laser irradiation[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 2014-2019 DOI: 10.3788/OPE.20142208.2014.
为了得到激光辐照下尼龙材料的烧蚀规律,利用红外成像的方法分析了近红外连续激光辐照尼龙材料引起的热烧蚀现象。用摄像机和红外热像仪记录了尼龙材料在烧蚀过程中的主要现象和温度变化过程,并对实验结果与ANSYS仿真结果进行了对比。使用波长为976 nm,输出功率密度为1×10
5
W/m
2
、光斑高斯半径为10 mm的光束对尼龙材料进行照射的结果显示:开始时尼龙材料温度迅速上升,发生膨胀,并逐渐熔融分解;随着照射时间的增加,尼龙材料温度变化变缓,熔融部分向光斑边缘退化;当达到一定温度时,材料温度不再升高。由于受光束质量、材料性能不均匀、熔融部分向边缘退化等因素影响,得到的实验烧蚀结果与理论烧蚀结果稍有差异,但基本吻合,验证了实验方法及ANSYS数值仿真方案的可行性。
To obtain the thermal ablation law of nylon materials under laser irradiation
the infrared imaging was used to explore thermal ablation phenomena of nylon materials under continuous infrared laser irradiation. A camera and an infrared thermal imager were used to record the main phenomena of laser ablation and its temperature field
and a comparison between experiment results and ANSYS simulation was performed. When the nylon was irradiated by using a 976 nm laser beam with an output power density of 1×10
5
W/m
2
and a spot semi-diameter of 10 mm
the experiments show that the temperature of nylon rises quickly at first
then
expands
melts and decomposes. As time goes on
the temperature of nylon changes slowly
and the melted parts degenerate into the spot edge. When the temperature of nylon reaches certain value
it is no longer rise. Affected by beam quality
material heterogeneous
melted parts degenerated and so on
it indicates that the experimental ablation results and the theoretical results are slightly different
but basically acceptable
which verifies the feasibility of the proposed method and ANSYS simulation.
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常新龙,李正亮,胡波,等. 碳纤维/环氧树脂层合板的激光烧蚀特性分析[J]. 激光与红外工程, 2011, 40(9):1691-1695. CHANG X L, LI ZH L, HU B, et al.. Analysis of carbon/epoxy laminates ablation subject to laser irradiation[J]. Infrared and Laser Engineering, 2011, 40(9):1691-1695. (in Chinese)
陈博,万红,穆景阳,等. 重频激光作用下碳纤维/环氧树脂复合材料热损伤规律[J]. 强激光与粒子束, 2008, 20(4):547-551. CHEN B, WAN H, MU J Y, et al.. Ablation mechanism of carbon fiber/epoxy composite irradiated by repetition frequency laser [J].High Power Laser and Particle Beams, 2008, 20(4):547-551. (in Chinese)
黄永光,刘世炳,龙连春,等. Nd:YAG连续激光烧蚀碳纤维复合材料的过程观察[J]. 中国激光, 2008, 35(12):2042-2046. HUANG Y G, LIU SH B, LONG L CH, et al.. Observation on the process of continuous wave Nd:YAG laser ablation on carbon fiber composite material [J]. Chinese Journal of Laser, 2008, 35(12):2042-2046. (in Chinese)
郭亚林,梁国正,丘哲明,等. 激光参数对碳纤维复合材料质量烧蚀率的影响[J]. 复合材料学报, 2006, 23(5):84-88. GUO Y L, LIANG G ZH, QIU ZH M, et al.. Effect of laser parameters on mass ablative rate of carbon fiber reinforced composite[J]. Acta Materiae Compositae Sinica, 2006, 23(5):84-88. (in Chinese)
陈敏孙,江厚满. 切向空气气流对激光烧蚀碳纤维复合材料过程的影响[J]. 光学精密工程, 2011, 19(2): 482-486. CHEN M S, JIANG H M. Influence of tangential airflows on process of laser ablating carbon-fiber composites [J]. Opt. Precision Eng., 2011,19(2): 482-486. (in Chinese)
刘峰,彭国良,杜太焦,等. 切向气流对激光加热金属板非熔化穿孔效应的影响[J]. 中国光学, 2013, 6(3):332-342. LIU F, PENG G L, DU T J, et al.. Influence of tangential airflows on burn-through effect with no-melting of metral heated by laser[J]. Chinese Optics, 2013, 6(3):332-342.(in Chinese)
肖婧,何衡湘,夏惠军,等. 长脉冲与连续激光联合辐照铝合金的温度场仿真[J]. 中国激光, 2012, 39(11): 1103002-1-6. XIAO J, HE H X, XIA H J, et al.. Temperature flied simulation on aluminum alloy irradiated by long pulsed laser and continuous wave laser[J]. Chinese Journal of Laser, 2012, 39(11): 1103002-1-6. (in Chinese)
李大为. 强激光对低慢小目标的热损伤效应研究[D]. 西安:空军工程大学, 2012. LI D W. Study on High Power Laser Damage about Low Slow Small Target[D]. Xi'an:Air Force Engineering University,2012. (in Chinese)
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