摘要We undertake a numerical simulation of shock experiments on tin reported in the literature, by using a multiphase equation of state (MEOS) and a multiphase Steinberg Guinan (MSG) constitutive model for tin in the β, γ and liquid phases. In the MSG model, the Bauschinger effect is considered to better describe the unloading behavior. The phase diagram and Hugoniot of tin are calculated by MEOS, and they agree well with the experimental data. Combined with the MEOS and MSG models, hydrodynamic computer simulations are successful in reproducing the measured velocity profile of the shock wave experiment. Moreover, by analyzing the mass fraction contour as well as stress and temperature profiles of each phase for tin, we further discuss the complex behavior of tin under shock-wave loading.
Abstract：We undertake a numerical simulation of shock experiments on tin reported in the literature, by using a multiphase equation of state (MEOS) and a multiphase Steinberg Guinan (MSG) constitutive model for tin in the β, γ and liquid phases. In the MSG model, the Bauschinger effect is considered to better describe the unloading behavior. The phase diagram and Hugoniot of tin are calculated by MEOS, and they agree well with the experimental data. Combined with the MEOS and MSG models, hydrodynamic computer simulations are successful in reproducing the measured velocity profile of the shock wave experiment. Moreover, by analyzing the mass fraction contour as well as stress and temperature profiles of each phase for tin, we further discuss the complex behavior of tin under shock-wave loading.
SONG Hai-Feng;LIU Hai-Feng;ZHANG Guang-Cai;ZHAO Yan-Hong. Numerical Simulation of Wave Propagation and Phase Transition of Tin under Shock-Wave Loading[J]. 中国物理快报, 2009, 26(6): 66401-066401.
SONG Hai-Feng, LIU Hai-Feng, ZHANG Guang-Cai, ZHAO Yan-Hong. Numerical Simulation of Wave Propagation and Phase Transition of Tin under Shock-Wave Loading. Chin. Phys. Lett., 2009, 26(6): 66401-066401.
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