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摘要: 本文通过对不同初始温度下密实材料的冲击绝热线进行简单的假定，并利用常压下材料的热膨胀方程，导出了多孔材料在中高压力段的冲击绝热线和等熵卸载线方程。与多孔铝、铁、铜的冲击压缩实验数据比较，证实该方程有较好的计算精度。Abstract: In this paper, it is assumed that the linear relationship of shock adiabat, D=a+bu is valid for dense materials having different specific internal energies at zero-pressure. On the basis of this assumption and by using the thermal expansion relation at normal pressure, equations for calculating shock adiabats and isentropic for porous materials are derived. The calculated shock adiabats for porous aluminum, copper, and iron, are in accord with the measured data given in Ref. [1].
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Key words:
- shock adiabat /
- isentropic /
- shock wave /
- porous material
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McQueen R G. In: Kinslow R. High Velocity Impact Phenomena. Academic Press, 1971: 314. 王礼立. 应力波(下册). 中国科技大学讲义, 1982. 经福谦. 爆炸与冲击, 1982, (3): 17. 徐锡申, 张万箱, 等. 实用物态方程理论导引. 北京: 科学出版社, 1986: 349. Scheider P J. In: Rohsenow W M. Handbook of Heat Transfer Fundamentals. McGraw-Hill Book Company, 1985: 3-1. Carroll M M, Holt A C. J Appl Phys, 1972, 43: 1626. -
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