Equivalent-scale Experiment on Damage of Aviation Aluminium Alloy for UAV by Laser Irradiation
  
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DOI:10.7643/issn.1672-9242.2022.12.011
KeyWord:aluminum alloy  laser irradiation  laser damage  scale law  equivalent-scale model  UAV
                 
AuthorInstitution
LIU Kun Unit 32178 of the PLA, Beijing , China
ZHANG Qing-xia Unit 32178 of the PLA, Beijing , China
SUN Shu-wei Unit 32178 of the PLA, Beijing , China
BAI Yi-xin Southwest Institute of Technology and Engineering, Chongqing , China
TANG Wei Sate Key laboratory of Laser Interaction with Matter, Changchun Institute of Optics Fine Mechanics and Physics, CAS, Changchun , China
ZHENG Chang-bin Sate Key laboratory of Laser Interaction with Matter, Changchun Institute of Optics Fine Mechanics and Physics, CAS, Changchun , China
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Abstract:
      The work aims to carry out equivalent-scale experiments of laser irradiation on aviation aluminum alloy materials for UAV, lay a foundation for the damage characteristics and laws of laser irradiation on UAV, and provide scientific and reliable reference data for demonstration of tactic indexes of high-power laser weapons. The equivalent-scale model method was used to conduct damage experiment on the aviation aluminum target by laser irradiation. Parameters such as breakthrough time, spot diameter and laser power were recorded, and the damage law was analyzed through the correction experiment. In the equivalent-scale experiments, with the increase of scaling law CP, the average breakthrough time of aviation aluminum plate gradually increased, and the laser energy density required for breakthrough basically conformed to the law of linear increase. In the correction experiments, the breakthrough time increased gradually with the increase of aviation aluminum alloy plate thickness, and the experimental fitting curve was in good agreement with the theoretical curve. Through the equivalent-scale experiments and correction experiments, the damage model formula of aviation aluminum alloy by high-power laser can be established, and the damage threshold and breakthrough time can be calculated according to the laser parameters.
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