Infrared and Laser Engineering, Volume. 50, Issue S2, 20200415(2021)
Numerical analysis of temperature field and stress field of fused silica irradiated by millisecond-nanosecond combined pulse laser
Figures & Tables(10)
Fig. 1. Geometric model of fused silica irradiated by millisecond-nanosecond pulse laser
Fig. 2. Temperature nephogram of fused quartz irradiated by millisecond-nanosecond pulse laser
Fig. 4. Under different laser energy conditions, the radial temperature change of the material surface
Fig. 5. Relationship between melting radius and total energy of fused silica
Fig. 6. Relationship between the ratio of melting radius irradiated by combined pulse laser and millisecond pulse laser
Fig. 7. Radial stress trend of millisecond laser and combined pulse laser
Fig. 8. Axial stress trend of millisecond laser and combined pulse laser
Table 1. Simulation thermodynamic parameters of fused quartz
View tableView in ArticleTable 1. Simulation thermodynamic parameters of fused quartz
Parameter Value Young modulus/GPa 72.60 Poisson ratio 0.17 density/g·cm−3 2.21 Thermal expansion coefficient/K−1 5.4×10−7 Thermal conductivity/W·(m·K)−1 1.38 Heat capacity/J·(kg·K)−1 703 Absorption coefficient/m−1 1.9×10−2
Table 2. Simulation parameters of millisecond-nanosecond pulse laser
View tableView in ArticleTable 2. Simulation parameters of millisecond-nanosecond pulse laser
Parameter Value Millisecond pulse energy/J 100-150 Millisecond pulse width/ms 1 Millisecond pulse spot radius/mm 1 Nanosecond pulse energy/mJ 80-220 Nanosecond pulse width/ns 10 Nanosecond pulse spot radius/mm 1 $\Delta $ t/ms0.25-1.25
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Shengqiang Xia, Jixing Cai, Xiaoyun Zhang, Chao Xin, Jingyi Li, Guangyong Jin. Numerical analysis of temperature field and stress field of fused silica irradiated by millisecond-nanosecond combined pulse laser[J]. Infrared and Laser Engineering, 2021, 50(S2): 20200415
Paper Information
Category: Lasers and laser optics
Received: Oct. 30, 2020
Accepted: --
Published Online: Dec. 3, 2021
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