| 激光辐照下金属/炸药结构三维温度场的数值模拟 |
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| 引用本文： | 焦路光,赵国民. 激光辐照下金属/炸药结构三维温度场的数值模拟[J]. 红外与激光工程, 2011, 0(9): 1715-1719 |
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| 作者姓名： | 焦路光 赵国民 |
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| 作者单位： | 国防科学技术大学光电科学与工程学院; |
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| 基金项目： | 国家自然科学基金(60908027) |
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| 摘 要： | 根据实验测量得到的钢靶表面能量耦合系数随温度的变化规律,考虑金属材料的物性参数随温度的变化及表面发生的熔凝过程,建立了连续激光作用下金属/炸药结构内部三维温度场分布的有限元计算模型,分析了金属壳体厚度对计算结果的影响及炸药热爆炸的可能性.计算结果表明,金属壳体越厚,炸药能够获得的温升越小,其热引爆也就越发困难.在有限的...
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| 关 键 词： | 激光与物质相互作用 高能激光 金属/炸药结构 温度场 热爆炸 |
Numerical simulation of three-dimensional temperature field of metal/explosive irradiated by high energy laser |
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| Jiao Luguang,Zhao Guomin. Numerical simulation of three-dimensional temperature field of metal/explosive irradiated by high energy laser[J]. Infrared and Laser Engineering, 2011, 0(9): 1715-1719 |
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| Authors: | Jiao Luguang Zhao Guomin |
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| Affiliation: | Jiao Luguang,Zhao Guomin(College of Photoelectric Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | Utilizing the temperature dependence of the reflectivity of 45# steel target at the wavelength of 1 064 nm,the three-dimensional temperature field of a metal/explosive structure irradiated by continuous laser was calculated.In the numerical model,the phase-change process and the temperature-dependent material properties of the metal were also taken into account.Using this model,the temperature fields of the metal/explosive structure with different metal casing thickness were compared.Then the possibility of... |
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| Keywords: | laser-matter interaction high energy laser metal/explosive structure temperature field thermal explosion |
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