Generating quasi-isentropic compression waves via layered flier-plate materials

Recent studies indicate that a kind of Layered Flier-Plate (LFP) materials can be used to generate quasi-isentropic compression waves in target materials as opposed to conventional shock loading. In this study several different plates were joined together to form such LFP materials with a parabolic distribution of density along the thickness direction. The impact experiments of the LFP materials on the targets Were carried out on a light gas gun, and the histories of the free surface velocity of the targets were measured by VISAR. The results showed that wave profiles with a stepwise front were created, i.e. quasi-isentropic compression waves had been successfully generated via LFP materials.