Evolution of Luminous Front at Impact of a 1 km/s Projectile into Sand Layer

机译：1 km / s射弹撞击到砂层的浅色前线的演变

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Shock wave propagation in granular media is one of fundamental research topics of shock wave dynamics. However, shock wave loading in quartz sand layers resulting in the compression or fragmentation of quartz grains, unlike inert granular media, exhibits piezo-effect at compression wave fronts typically accompanying luminosity, which may be equivalent to real gas effects in hypersonic flows. The authors have been working on high-speed impact of projectiles into quartz sand layers and then observed the propagation of luminous fronts in association with a penetrating projectile.

机译：粒度介质中的冲击波传播是冲击波动力学的基本研究主题之一。然而，与惰性颗粒介质不同，在石英砂层中的冲击波加载导致石英晶体不同的压缩颗粒，其在压缩波前面的压缩效应通常伴随着发光度，这可能相当于超声波流动中的真实气体效果。作者一直在研究射弹的高速影响到石英砂层，然后观察到与渗透射弹结合的发光前锋的传播。

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《International Symposium on Shock Waves》|2015年||共5页
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H. Yamamoto; K. Takayama; W. Cooper;
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Evolution of Luminous Front at Impact of a 1 km/s Projectile into Sand Layer

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