一种多孔铁的冲击压缩性

SHOCK COMPRESSION OF A KIND OF POROUS IRON

用二级轻气炮作为动态加载装置 ,用电探针技术和阻滞法在 80～ 16 0GPa压力范围内测量了平均初始密度为 6 90 4g/cm3的多孔铁的冲击压缩性。实验结果表明 ,其冲击压缩线可以用D=2 977+1 6 0 3up 的线性关系描述 (D ,up 分别是冲击波速度和粒子速度 ,单位km/s) ,这一结果与国外的实验结果和Wu Jing模型的预测结果相符。

Shock wave velocities in porous iron with initial average density 6.904g/cm 3 were measured using electric pin method in the pressure range of 80 to 160GPa.The experimental results indicate that the dynamic compressive properties of this porous iron can be described using a linear relation between the shock wave velocity D and the particle velocity u p,i.e., D =2.997+1.603 u p(km/s).The results are in good agreement with LASL data and the value predicted by Wu Jing theory.