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摘要: 将铝、铁、铜等七种材料弹性声速的实测数据进行分析处理发现，其弹性声速随压力的变化均可以用一下关系：ln c=A0+A1ln p+A2ln2p，很好的拟合。拟合结果与实测值的相对误差小于5%。Abstract: After treating analyticaly the measured elastic sound speed c of seven materials, including aluminum, iron, copper and so on, at high pressures, it is shown that the change of the elastic sound speed with pressures may be described as ln c=A0+A1ln p+A2ln2p , here, A0, A1, A2, are meterial constants, p is the pressure. The relative error between the fitting data and the measured data is less than 5%.
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Key words:
- high pressure /
- elastic propertise /
- sound speed
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Альтшулер Л В, Важник М И, Телегой Г С. ПМГФ, 1971, 6: 159. McQueen R G, Fritz J N, Morris C E. The Volocity of Sound behind Strong Shock Waves in 2024 Al. In: Shock Waves in Condensed Matter, 1983. Brown J M, et al. Rarefaction Velocities in Shocked Tamalum and the High Pressure Melting Point. In: Shock Waves in Condensed Matter, 1983: 91. 王贵朝, 谢盘海, 谭振南. 高压下材料追赶稀疏波速度的辐射测量技术. 第三届全国高压学术讨论会文集, 1985. 布罗贝格 K B. 尹样础译. 弹性及弹-塑性介质中的冲击波. 北京: 科学出版社, 1965. -
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