Abstract
Shock stress profile has been measured for polymer materials by the DYNASEN PVDF stress gauge in around 0. 5 GPa stress region. Evolution of the profile with the propagation distance for PMMA and polyethylene has been characterized by the relaxation time and the ratio of stress at the front to the asymptotic value. The change of the ratio of the instantaneous stress value to that of the asymptotic stress and the relaxation time has been obtained.
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