The dynamic response of polymethyl methacrylate (PMMA) under explosive loading.

Explosively-driven shock wave propagation, attenuation, and fracture growth were measured in polymethyl methacrylate (PMMA) samples of various geometries.The samples were loaded with RP-80 exploding bridge wire detonators.Free surface velocity was measured using Photon Doppler Velocimetry (PDV).High-speed schlieren imaging was used for determination of the shock velocity, and fracture growth rate..The measured quantities describe the explosively driven shock state of PMMA High-speed Imaging of Shock and Fracture PDV of Shock Pulse t = 0 s t = 30 s t = 60 s t = 90 s Future work