Abstract
We present direct measurements of the temperature of shock-loaded polymethylmethacrylate (PMMA) in the 0.5 – 3.0-GPa range. The experimental technique is based on embedding a very thin (1 μm thick or less) copper thermistor in the shocked sample and recording its resistance changes during the 5–8 μs of a dynamic experiment. Due to the small thickness of the gauge thermal equilibrium between gauge and specimen can be reached in these short times. The measured temperatures of shock-loaded PMMA are in good agreement with the calculated values. Moreover, the measured temperature-time histories confirm the viscoelastic behavior of PMMA, shock loaded in the 0–2.0 GPa, which was found by others using particle velocity measurements.

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