| 脉冲CO_2激光对K9玻璃损伤机理的仿真计算与研究 |
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| 引用本文： | 王玺,李化,聂劲松.脉冲CO_2激光对K9玻璃损伤机理的仿真计算与研究[J].电光与控制,2008,15(12). |
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| 作者姓名： | 王玺 李化 聂劲松 |
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| 作者单位： | 1. 电子工程学院脉冲功率激光技术国家重点实验室,合肥,230037;中国人民解放军61251部队,河北,秦皇岛,066102
2. 电子工程学院脉冲功率激光技术国家重点实验室,合肥,230037 |
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| 摘 要： | ANSYS是计算机辅助工程领域应用最广泛的有限元分析软件,通过脉冲CO2激光损伤K9玻璃有限元模型的建立和网格划分、脉冲激光的加载、设置初始条件和边界条件等几个方面,分析了基于ANSYS仿真脉冲CO2激光损伤K9玻璃过程中的一些关键问题.建立了脉冲CO2激光损伤K9玻璃的有限元模型,对K9玻璃受到脉冲CO2激光辐照时的温度和应力分布进行了数值分析.计算结果表明:在激光能量较小情况下K9玻璃的损伤为热应力损伤,损伤主要由环向拉伸应力所控制,存在体损伤和面损伤两种形式,激光脉宽和光斑半径对损伤效果有较大影响,脉宽越小,产生的热应力越大,损伤效果越好;激光光斑半径越大,产生的热应力越小,损伤效果越差.
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| 关 键 词： | 激光损伤 脉冲CO2激光 仿真计算 数值分析 |
Research on damage mechanism of K9 glass irradiated by pulsed CO_2 laser based on simulate calculation |
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| WANG Xi,LI Hua,NIE Jin-song.Research on damage mechanism of K9 glass irradiated by pulsed CO_2 laser based on simulate calculation[J].Electronics Optics & Control,2008,15(12). |
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| Authors: | WANG Xi LI Hua NIE Jin-song |
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| Affiliation: | 1.State Key Laboratory of Pulsed Power Laser Technology;Electronic Engineering Institute;Hefei 230037;China;2.No.61251 Unit of PLA;Qinhuangdao 066102;China |
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| Abstract: | ANSYS is a widely-used finite element model analysis software in compute aided engineering.Some critical problems are analyzed in damage of K9 glass by pulsed CO2 laser based on ANSYS from the following aspects:building and meshing of finite-element model,loading of pulsed laser,setting of initial conditions and boundary conditions.The finite element model was established and a numerical analysis was performed to calculate the temperature and stress distribution in K9 glass irradiated by pulsed CO2 laser.Th... |
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| Keywords: | laser damage pulsed CO2 laser simulation calculation numerical analysis |
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