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

机译：1 km / s弹丸撞击沙层时发光前沿的演变

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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：冲击波在颗粒介质中的传播是冲击波动力学的基础研究主题之一。但是，与惰性粒状介质不同，冲击波在石英砂层中的加载会导致石英颗粒的压缩或破碎，在惰性的压缩波前沿显示出压电效应，通常伴随着光度，这可能等同于高超声速流动中的实际气体效应。作者一直在研究弹丸对石英砂层的高速撞击，然后观察发光前沿与穿透弹丸的关联。

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《International Symposium on Shock Waves》|2015年|763-767|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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