• High Power Laser and Particle Beams
  • Vol. 32, Issue 7, 071007 (2020)
Jiaxi Liu, Junying Wu*, Lijun Yang, Yaojiang Li, Jiaojiao Wu, Jianying Lu, and Lang Chen
Author Affiliations
  • State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
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    DOI: 10.11884/HPLPB202032.200061 Cite this Article
    Jiaxi Liu, Junying Wu, Lijun Yang, Yaojiang Li, Jiaojiao Wu, Jianying Lu, Lang Chen. Analysis of thermal effect on explosives of single-pulse femtosecond laser ablation[J]. High Power Laser and Particle Beams, 2020, 32(7): 071007 Copy Citation Text show less
    Schematic diagram of femtosecond laser ablation of explosive
    Fig. 1. Schematic diagram of femtosecond laser ablation of explosive
    Schematic diagram of fluid-solid coupling calculation model of femtosecond laser ablation of explosive
    Fig. 2. Schematic diagram of fluid-solid coupling calculation model of femtosecond laser ablation of explosive
    Pressure distribution in the air(200 μJ)
    Fig. 3. Pressure distribution in the air(200 μJ)
    Plasma distribution in the air(200 μJ)
    Fig. 4. Plasma distribution in the air(200 μJ)
    Temperature distribution in the air(200 μJ)
    Fig. 5. Temperature distribution in the air(200 μJ)
    Temperature distribution in the unablated zones of TNT(200 μJ)
    Fig. 6. Temperature distribution in the unablated zones of TNT(200 μJ)
    Schematic diagram of the temperature monitors in TNT
    Fig. 7. Schematic diagram of the temperature monitors in TNT
    Temperature changes over time at each temperature monitoring point in TNT
    Fig. 8. Temperature changes over time at each temperature monitoring point in TNT
    Temperature changes over time at each axial temperature monitoring point in TNT
    Fig. 9. Temperature changes over time at each axial temperature monitoring point in TNT
    Temperature changes over time at each radial temperature monitoring point in TNT
    Fig. 10. Temperature changes over time at each radial temperature monitoring point in TNT
    explosivedensity/(kg·m−3specific thermal capacity/(J·kg−1·K−1thermal conductivity/(W·m−1·K−1ignition temperature/K
    TNT1 5801 3800.5513
    Table 1. Physical properties of TNT
    stepE/(kJ·mol−1Z/s−1Q/(kJ·kg−1
    1200.0006.0×1014−125.575
    2144.4121.957×10123 767.267
    3140.2262.391×10133 592.840
    Table 2. Kinetic parameters of multi-step thermal decomposition reaction of TNT
    Jiaxi Liu, Junying Wu, Lijun Yang, Yaojiang Li, Jiaojiao Wu, Jianying Lu, Lang Chen. Analysis of thermal effect on explosives of single-pulse femtosecond laser ablation[J]. High Power Laser and Particle Beams, 2020, 32(7): 071007
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