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

E. B. Zaretsky; G. I. Kanel

doi:10.1063/1.5116075

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

E. B. Zaretsky, G. I. Kanel

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The shock wave response of commercial poly(methyl methacrylate), PMMA, in the vicinity of its glass transition temperature (T_g = 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 language	English
Article number	5116075
Journal	Journal of Applied Physics
Volume	126
Issue number	8
DOIs	https://doi.org/10.1063/1.5116075
State	Published - 28 Aug 2019

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Response of poly(methyl methacrylate) to shock-wave loading at elevated temperatures",

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.",

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N2 - 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.

AB - 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.

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

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