摘要
材料在强脉冲激光辐照下,表面将出现气化反冲,从而在内部形成冲击波。文章介绍了确定靶面压力的常用定标关系,计算了铝靶和涤纶靶在激光辐照下的表面压力和冲量耦合系数;文中还对激光冲击波的传播进行了数值模拟,得到了激光冲击波的传播图像及其与激光脉宽的关系。
When a body is irradiated by a beam of high-intensity pulsed laser,a reversed impulse will be generated on its surface,and at the same time,a shock wave will be formed and propagate inside the body.This paper proposes a formula to estimate the pressure on the surface,and the impulse coupling coefficients are obtained for aluminum and polyester targets.The propagation images of the shock wave and their relation with the pulse width of the laser are analyzed.
出处
《航天器环境工程》
2012年第1期14-17,共4页
Spacecraft Environment Engineering
关键词
强脉冲激光
冲击波
冲量耦合系数
high-intensity pulsed laser
shock wave
impulse coupling coefficient
