EQUATION OF STATE DATA FROM OFF‐HUGONIOT MEASUREMENTS IN MULTIPLY‐SHOCKED LIQUIDS

Plate impact techniques were used to determine Equation of State data in liquids. A copper cell was constructed to confine a test liquid and facilitate the ring‐up of stress in the sample. Copper flyer plates were impacted against the cell at a range of velocities inducing a number of stress states in the sample, both on and off the principal Hugoniot. It was assumed that a Mie‐Gruneisen form of the Equation of State was applicable, where the stresses measured at each shocked state allow a best‐fit value of the Gruneisen parameter to be determined. The volume‐dependence of the Gruneisen parameter is also considered.