DAMAGE EFFECT OF ALUMINUM ALLOY MATERIAL CAUSED BY AN ELECTRON BEAM

In this paper, the thermal shock wave and damage effect of LY 12 aluminum alloy exposed to an electron beam are theoretically calculated. The calculated results are consistent with the experimental results. The melting process should be adequately taken into account for the studies of the material dynamic response in the intermediate energy deposition range. The equation of state (EOS) model used is a GRAY three phase EOS. When the damage effect of materr als is studied, the Bodner - Partom constitutive equation for the elastic -viscoplastic damage materials is modified.