Numerical Simulation of Wave Propagation and Phase Transition of Tin under Shock-Wave Loading  

作　　者：宋海峰 刘海风 张广财 赵艳红 

机构地区：[1]Institute of Applied Physics and Computational Mathematics, Beijing 100088

出　　处：《Chinese Physics Letters》2009年第6期228-231,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10804011 and 10604010, and the Science Foundation of China Academy of Engineering Physics under Grant No 20060107.

摘　　要：We undertake a nmnerical 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 theβ, 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 M130S 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.We undertake a nmnerical 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 theβ, 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 M130S 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.

分 类 号：TQ560.1[化学工程—炸药化工] TK423.5[动力工程及工程热物理—动力机械及工程]