Measurements of Detonation Pressure

Cook, Melvin A.; Keyes, Robert T.; Ursenbach, W. O.

doi:10.1063/1.1702422

Cited by 32 publications

(8 citation statements)

References 12 publications

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“…Al'tshuler et al [140] disputed this conclusion and claimed that there was break in the Hugoniot near 11 GPa. Subsequent Hugoniot measurements [141][142][143][144][145][146] generally agree with the Walsh and Rice data and do not suggest any such discontinuity.…”

Section: Shock Wave Experiments In Liquid Watersupporting

confidence: 71%

Time Dependent Freezing of Water under Multiple Shock Wave Compression

Dolan¹,

Gupta²

2004

AIP Conference Proceedings

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I thank Dr. Oleg Fat'yanov and Dr. Scott Jones for their assistance in the VISAR experiments. Kurt Zimmerman played a large role in the constructing the optical imaging system and other instrumentation for this work. Dave Savage, Steve Thompson, John Rutherford, and Gary Chantler assisted in building and performing the experiments. Finally, I wish to acknowledge the support and understanding of my wife, Elizabeth.

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Section: Shock Wave Experiments In Liquid Watersupporting

confidence: 71%

Time Dependent Freezing of Water under Multiple Shock Wave Compression

Dolan¹,

Gupta²

2004

AIP Conference Proceedings

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“…The former method has been applied to liquid water by Gurtman et al; 22 the latter method was used here following the liquid nitromethane work by Winey et al 28 Several single shock studies of liquid water have been reported for pressures below 15 GPa, [29][30][31][32][33] but the data of Walsh and Rice 7 were used here because the required pressure range was covered with reasonable precision. ͑2͒ with a second isotherm or any other P − v curve, such as the Hugoniot curve.…”

Section: Liquid Water Eosmentioning

confidence: 99%

Nanosecond freezing of water under multiple shock wave compression: Continuum modeling and wave profile measurements

Dolan

Johnson

Gupta

2005

The Journal of Chemical Physics

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Using real time optical transmission and imaging measurements in multiple shock wave compression experiments, water was shown to solidify on nanosecond time scales [D. H. Dolan and Y. M. Gupta, J. Chem. Phys. 121, 9050 (2004)]. Continuum modeling and wave profile measurements, presented here, provide a complementary approach to examine the freezing of shocked water. The water model consisted of thermodynamically consistent descriptions of liquid and solid (ice VII) water, relationships for phase coexistence, and a time-dependent transition description to simulate freezing dynamics. Continuum calculations using the water model demonstrate that, unlike single shock compression, multiple shock compression results in pressure-temperature conditions where the ice VIII phase is thermodynamically favored over the liquid phase. Wave profile measurements, using laser interferometry, were obtained with quartz and sapphire windows at a peak pressure of 5 GPa. For water confined between sapphire windows, numerical simulations corresponding to a purely liquid response are in excellent agreement with the measured wave profile. For water confined between quartz windows (to provide a nucleating surface), wave profile measurements demonstrate a pure liquid response for an incubation time of approximately 100 ns followed by a time-dependent transformation. Analysis of the wave profiles after the onset of transformation suggests that water changes from a metastable liquid to a denser phase, consistent with the formation of a high-pressure ice phase. Continuum analyses and simulations underscore the need for multiple time scales to model the freezing transition. Findings from the present continuum work are extremely consistent with optical results reported previously. These studies constitute the first comprehensive investigation reported for freezing of a liquid at very short time scales.

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“…For the calculation of the peak pressure in the shock wave in the low-pressure range a Hugoniot relation described by Woolfolk et al (*) was used, whereas in the high-pressure region a relation published by Cook et al (9) was taken. Both functions were fitted together by means of a procedure described by Christ (7).…”

Section: Resultsmentioning

confidence: 99%

Shock‐Wave measurements in water for calibrating the BICT‐Gap Test

Trimborn¹,

Wild²

1982

Propellants Explo Pyrotec

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By means of shock‐wave measurements it was possible to calibrate the BICT‐gap test. The relation between the height of the gap and the shock‐wave peak pressure at the end of the gap is described. From other considerations the range where the test can be used, can be obtained. BICT‐gap test will be used to test explosives whose critical diameters do not exceed 20 mm and which will be initiated by shockwave pressures from 7 kbar to 60 kbar. The test method can be regarded as a small scale‐gap test for military explosives.

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Measurements of Detonation Pressure

Cited by 32 publications

References 12 publications

Time Dependent Freezing of Water under Multiple Shock Wave Compression

Time Dependent Freezing of Water under Multiple Shock Wave Compression

Nanosecond freezing of water under multiple shock wave compression: Continuum modeling and wave profile measurements

Shock‐Wave measurements in water for calibrating the BICT‐Gap Test

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