Modeling high-rate straining of cerium in shock waves and explosive experiments

The paper presents numerical results from calculations simulating experiments which were focused on the investigation of stress profiles in high-purity and high-grade cerium. The experiments were taken in recent years at LANL with use of light-gas guns for loading samples and the VISAR technique for recording stress profiles and at RFNC-VNIITF where samples were loaded with the sliding and normal detonation of HE and the registration of stress profiles was done with photo- chronographic optic lever technique. Provided is information on the multiphase equation of state and the elastic-plastic models used in calculations. Calculated and experimental profiles are compared. Specific features and characteristics of high-rate straining of cerium are discussed.