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Numerical Simulation of Shock Wave Structure in Single Crystal Copper
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Xiao-Liang DENG1, 2, Wen-Jun ZHU2, 3, Jin LUO1, 2, Hong-Liang HE2, Deng-Xue WU1, Fu-Qian JING2, 3
Chinese Journal of High Pressure Physics | 2006, 20(2) : 172 - 178
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Chinese Journal of High Pressure Physics | 2006, 20(2): 172-178
Numerical Simulation of Shock Wave Structure in Single Crystal Copper
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Xiao-Liang DENG1, 2, Wen-Jun ZHU2, 3, Jin LUO1, 2, Hong-Liang HE2, Deng-Xue WU1, Fu-Qian JING2, 3
Affiliations
  • 1.Department of Physics, Sichuan University, Chengdu 610064, China
  • 2.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China
  • 3.Research Center of High Pressure Physics, Sichuan Normal University, Chengdu 610068, China
Published: 2006-06-05
Outline
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The structure of shock wave in single crystal copper has been studied by means of molecular dynamics (MD) method with a realistic embedded atom potential at initial condition of zero temperature. The simulation results indicate that the after-shock state will evolve to thermodynamic equilibrium state even initial state is zero temperature. By means of local analysis and calculation, time history of the distribution of pressure, particle velocity, strain and kinetic temperature after the shock front were obtained. The pressure, particle velocity, and strain increase and arrive at the stable condition within time period about 1 ps when shock pressure is about 262 GPa. The kinetic temperature always keeps maximum value in shock wave front and the nonzero temperature region broadens behind the shock wave as time passes by. After evolution of a critical time, the particle velocity in the after-shock region reaches a typical Maxwell distribution which means it reaches equilibrium state. The further analysis indicates that local equilibrium is an elemental course when the whole system evolves to thermodynamic equilibrium state.

shock wave  /  molecular dynamic  /  equilibrium state
邓小良, 祝文军, 罗晋, 贺红亮, 伍登学, 经福谦. 单晶铜中冲击波阵面结构的数值模拟研究. 高压物理学报, 2006 , 20 (2) : 172 -178 .
Xiao-Liang DENG, Wen-Jun ZHU, Jin LUO, Hong-Liang HE, Deng-Xue WU, Fu-Qian JING. Numerical Simulation of Shock Wave Structure in Single Crystal Copper[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (2) : 172 -178 .
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Year 2006 volume 20 Issue 2
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Article Info
  • Receive Date：2005-06-16
  • Online Date：2026-11-01
  • Published：2006-06-05
Article Data
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History
  • Received：2005-06-16
  • Revised：2005-09-09
Funding
Affiliations
    1.Department of Physics, Sichuan University, Chengdu 610064, China
    2.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China
    3.Research Center of High Pressure Physics, Sichuan Normal University, Chengdu 610068, 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
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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