Hugoniot equation of state of rock materials under shock compression

Two sets of shock compression tests (i.e. conventional and reverse impact) were conducted to determine the shock response of two rock materials using a plate impact facility. Embedded manganin stress gauges were used for the measurements of longitudinal stress and shock velocity. Photon Doppler velo...

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Bibliographic Details
Published inPhilosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences Vol. 375; no. 2085; p. 20160169
Main Authors Zhang, Q. B., Braithwaite, C. H., Zhao, J.
Format Journal Article
LanguageEnglish
Published England The Royal Society Publishing 28.01.2017
Subjects
Brittle materials
Compression tests
Dynamic Loading
Equation Of State
Equations of state
Free surfaces
Gabbro
Hugoniot equation of state
Manganin
Marble
Measuring instruments
Nonlinear response
Plate Impact
Rock Materials
Shock Compression
Strain Rate
Stress gauges
Velocimetry
Velocity
Velocity measurement
United States > US
dynamic loading
strain rate
plate impact
equation of state
shock compression
rock materials
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Summary:Two sets of shock compression tests (i.e. conventional and reverse impact) were conducted to determine the shock response of two rock materials using a plate impact facility. Embedded manganin stress gauges were used for the measurements of longitudinal stress and shock velocity. Photon Doppler velocimetry was used to capture the free surface velocity of the target. Experimental data were obtained on a fine-grained marble and a coarse-grained gabbro over a shock pressure range of approximately 1.5-12 GPa. Gabbro exhibited a linear Hugoniot equation of state (EOS) in the pressure-particle velocity (P-up) plane, while for marble a nonlinear response was observed. The EOS relations between shock velocity (US) and particle velocity (up) are linearly fitted as US = 2.62 + 3.319up and US = 5.4 85 + 1.038up for marble and gabbro, respectively. This article is part of the themed issue ‘Experimental testing and modelling of brittle materials at high strain rates’.
Bibliography:Theme issue “Experimental testing and modelling of brittle materials at high strain rates” compiled and edited by Pascal Forquin
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
One contribution of 15 to a theme issue ‘Experimental testing and modelling of brittle materials at high strain rates’.
ISSN:1364-503X
1471-2962
DOI:10.1098/rsta.2016.0169