脉冲电子束对材料破坏效应的数值研究

NUMERICAL RESEARCH ON THE DESTRUCTIBILITY OF PULSED ELECTRON BEAM TO MATERIALS

利用ＭｏｎｔｅＣａｒｌｏ方法计算了电子束的能量沉积，用流体动力学方程计算了热击波的传播，所用物态方程为ＧＲＡＹ三相物态方程。全部计算均由程序ＤＲＡＭ１Ｄ完成。讨论了波的传播规律，并给出了铝材迎光面反冲速度峰值及比质量亏损与电子束的入射通量和能量之间的关系。

The energy deposition of electron beam and the wave propagation in aluminum are calculated by using Monte Carlo methods and the hydrodynamic equations,respectively.The equation of state(EOS) used in the calculation is the GRAY three phase EOS, all the calculation is performed by the program DRAM1D.The relations between the peak front surface blow off velocity,specific mass loss and incident fluence and electron energy for aluminum are discussed.