Plate-Impact Measurements of a Select Model Poly(urethane urea) Elastomer
Final rept. 1 Sep 2011-31 Aug 2012
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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Plate-impact experiments were conducted to highlight the high-pressure, high-strain-rate response of a select model polyurethane urea PUU elastomer impacted against stationary soda lime glass target plates. The dynamic stress-strain behavior reveals that the stress level reaches 0.672 and 3.042 GPa at impact velocities of 298 and 998 ms, respectively. The PUU is partially unloaded in four successive steps after the initial compression at the impact velocity of 298 ms and three successive steps at 998 ms. Thus, data is obtained along the Hugoniot and along the release path. The release path and the Hugoniot coincide over the range of pressures studied.
- Elastomers and Rubber