Abstract
A series of planar impact tests were performed aiming at measuring the compressibility of the paraffin-poly-methylmethacrylate (PMMA) mixture up to a pressure of 2.5 GPa. It was found that compressive waves in the mixture consist of the initial part, characterized by a virtually linear increase of parameters, followed by the part associated with their relaxation. The dependence of the maximum strain rate of compression of the mixture on the final shock pressure was found to be much weaker than observed in metals and liquids. This inconsistency was explained by the difference of the viscosity mechanisms in these media. Based on an assumption of additivity of volumes of the mixture constituents, the estimates of bulk PMMA compressibility were obtained.
Original language | English |
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Article number | 245902 |
Journal | Journal of Applied Physics |
Volume | 127 |
Issue number | 24 |
DOIs | |
State | Published - 28 Jun 2020 |
ASJC Scopus subject areas
- General Physics and Astronomy