Shock wave compression behavior of aluminum foam

来源期刊：中南大学学报(英文版)2003年第4期

论文作者：程和法 黄笑梅 薛国宪 韩福生

文章页码：333 - 337

Key words：aluminum foam; shock wave; attenuation; Hugoniot

Abstract: The shock wave compression behavior of the open cell aluminum foam with relative density of 0.396 was studied through planar impact experiments. Using polyvinylidene fluoride(PVDF) piezoelectric gauge technique, the stress histories and propagation velocities of shock wave in the aluminum foam were measured and analyzed. The results show that the amplitude of shock wave attenuates rapidly with increasing the propagation distance in the aluminum foam, and an exponential equation of the normalized peak stress vs propagation distance of shock wave is established, the attenuation factor in the equation is 0.286. Furthermore, the Hugoniot relation,vs=516.85+1.27vp, for the aluminum foam is determined by empirical fit to the experimental Hugoniot data.