Hugoniot线上的一个经验常数——来自多孔材料Hugoniot数据的对比研究

 对不同初始密度样品冲击压缩Hugoniot数据的系统分析显示，对每种固体物质而言存在一个表征材料特性的沿其Hugoniot线不随冲击压力而变的经验常数β。β的数值随材料而异。对金属元素而言，该经验特性常数β与初始密实密度ρ₀之间遵循同一个幂指数关系。利用该常数β，可很方便地对不同初始密度的Hugoniot数据进行换算，并可以很方便地获得Grüneisen参数。还对β值为常数的适用范围作了讨论。

An Empirical Material Constant on the Hugoniot of Solids:From Comparative Study of Porous Materials

From the systemically comparative study of previous experimental solid Hugoniot data of different porous samples, a new material parameter β, which keeps in constant along Hugoniot for all kinds of solid materials, was revealed. For different materials, the value of β is different. There exist an universal power relationship between material constant β and initial density ρ₀ for metal. By using this constant β, Hugoniot data between different porous samples can be converted very simply, and Grüneisen parameter can also be obtained very easily. The limitation of this empirical material parameter being as a constant was discussed with variations of pressure and porosity.