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本文对强流低能相对论电子束引起LT－12铝产生的热击波和层裂进行了分析．电子束在靶材中的能量沉积是非常复杂的，通常都用Monte－Carlo数值模拟的方法来计算能量沉积，本文发展了一种新的半经验解析方法．在研究由电子束引起材料的动态响应时，对于靶材表面的熔化过程要进行适当考虑，本文使用了GRAY三相状态方程，详细考虑了这种复杂的溶化过程．同时在研究层裂破坏效应及应力波的衰减规律时，放弃了通常的von—Mises流体弹塑性模型，而使用了应变率相关的本构模型．计算结果和实验结果比较一致．
In this paper, the thermal shock waves and delamination caused by the high current low energy relativistic electron beam caused by LT-12 aluminum are analyzed. Electron beam energy deposition in the target is very complex, usually using Monte-Carlo numerical simulation method to calculate the energy deposition, the paper developed a new semi-empirical analytical method. When studying the dynamic response of material caused by electron beam, the melting process of target surface should be properly considered. In this paper, GRAY three-phase equation of state is used in this paper. The complex melting process is considered in detail. At the same time, in studying the vandalism effect of splitting layer and the attenuation law of stress wave, the usual von-Mises fluid elastoplastic model was abandoned and the strain rate related constitutive model was used. The calculated results are in good agreement with the experimental results.