Contribution of Lattice Vibration and Hot Electron to the Shock Compression Behavior of Porous Metal
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摘要: 根据固体晶格的谐振子模型、热电子的自由电子气模型以及Grneisen物态方程，仅通过简洁的代数运算分别导出晶格振动、热电子对疏松金属材料的冲击温度、冲击压强、乃至压缩体积贡献的计算公式。结果表明：晶格振动对冲击压缩体积的贡献分量计算公式与吴-经方程的推导结果在形式上具有很好的一致性，同时改进了热电子对体积贡献分量的计算公式。并论证了两个体积贡献分量表达式的合理性及其物理意义。
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关键词:
- 疏松材料 /
- Hugoniot物态方程 /
- Grneisen物态方程 /
- 吴-经物态方程 /
- 电子气模型
Abstract: Based on the Debye mode, electron gas model, and Grneisen equation of sate, new formula were deduced which describe the individual contributions of lattice vibration and hot electron to shock temperature, shock pressure and compression volume of porous metals. It is found that the contribution of lattice vibration to shock compression volume accord with W-J equation; meanwhile, the contribution of hot electron to shock compression volume also can be calculated by the improved equation. In this paper, we especially discussed the reliability and the physical meaning of the new equations. -
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