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Computational Design of Graded Density Impactors for Shock Loading and Quasi-Isentropic Compression
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Jing-Song BAI1, Guo-Qiang LUO1, 2, Mi TANG1, Jian-Bo HU1, Cheng-Da DAI1, Yun MA1, Hua TAN1, Qiang WU1
Chinese Journal of High Pressure Physics | 2009, 23(3) : 173 - 180
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Chinese Journal of High Pressure Physics | 2009, 23(3): 173-180
Computational Design of Graded Density Impactors for Shock Loading and Quasi-Isentropic Compression
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Jing-Song BAI1, Guo-Qiang LUO1, 2, Mi TANG1, Jian-Bo HU1, Cheng-Da DAI1, Yun MA1, Hua TAN1, Qiang WU1
Affiliations
  • 1.National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
  • 2.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
Published: 2009-06-15
Outline
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The method of 1D elastic-plastic hydrodynamic calculations, the mixing model of different material constituents, and the shock dynamics code of compressible fluids were verified through the overall comparisons of the calculated results with the experimental data from Lawrence Livermore National Laboratory (LLNL). A Mg-W system prepared for graded density impactor (GDI) for quasi-isentropic compression was proposed by means of numerical simulations. By considering the actual material fabrication, the technical restrictions of minimum thickness of discrete layer, and the limitation of maximum mixing rate of the two individual constituents, a model GDI of a novel Mg-W system was designed to actualize the required loading traces and anchor the structural characteristics of GDI. Numerical calculations show that the loading path and intensity are highly sensitive to the distribution of wave impedance of GDI. The experimental designs and predictions for different complicated loading/unloading processes can be realized through model calculations.

graded density impactor  /  complicated loading  /  light-gas gun  /  computation  /  Mg-W system
柏劲松, 罗国强, 唐蜜, 胡建波, 戴诚达, 马云, 谭华, 吴强. 冲击加载-准等熵加载过程的密度梯度飞片计算设计. 高压物理学报, 2009 , 23 (3) : 173 -180 .
Jing-Song BAI, Guo-Qiang LUO, Mi TANG, Jian-Bo HU, Cheng-Da DAI, Yun MA, Hua TAN, Qiang WU. Computational Design of Graded Density Impactors for Shock Loading and Quasi-Isentropic Compression[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (3) : 173 -180 .
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Year 2009 volume 23 Issue 3
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Article Info
  • Receive Date：2008-04-10
  • Online Date：2026-10-30
  • Published：2009-06-15
Article Data
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History
  • Received：2008-04-10
  • Revised：2008-08-30
Funding
Affiliations
    1.National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
    2.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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