Response of poly(methyl methacrylate) to shock-wave loading at elevated temperatures

E. B. Zaretsky, G. I. Kanel

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The shock wave response of commercial poly(methyl methacrylate), PMMA, in the vicinity of its glass transition temperature (Tg = 110-120 °C) was studied in two series of impact experiments, the first of which was aimed at the variation of the PMMA spall strength with temperature. The purpose of the second series was the effect of temperature on the PMMA Hugoniot. It was found that the spall strength of PMMA experiences an abrupt twofold drop at ≈120 °C. The PMMA Hugoniot U s = C 0 + s u p was found to be that of a virtually elastic solid with C 0 close to the longitudinal speed of sound, c l, at room temperature and transformed above T g into a viscous material with no shear strength and C 0 close to the bulk speed of sound, c b.

Original languageEnglish
Article number5116075
JournalJournal of Applied Physics
Volume126
Issue number8
DOIs
StatePublished - 28 Aug 2019

ASJC Scopus subject areas

  • General Physics and Astronomy

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