Effect of shear strength on Hugoniotcompression curve and the equation of state of tungsten (W)
Abstract
The Hugoniot data for highly dense polycrystalline tungsten were obtained for pressures above 200 GPa, and the equation of state (EOS) was determined taking into account shear strength effects. For this study, we have made some improvements in measurement system and analyses of the shock wave data. Symmetricimpact Hugoniot measurements were performed using the hightime resolution streak camera system equipped on a onestage powder gun and twostage light gas gun, where the effects of tilting and bowing of flyer plate on the Hugoniot data were carefully considered. The shock velocity–particle velocity (U{sub S}–U{sub P}) Hugoniot relation in the plastic regime was determined to be U{sub S} = 4.137 + 1.242U{sub P} km/s (U{sub P} < 2 km/s). Ultrasonic and Velocity Interferometer System for Any Reflector measurements were also performed in this study. The zerointercept value of the U{sub S}–U{sub P} Hugoniot relation was found to be slightly larger than the ultrasonic bulk sound velocity (4.023 km/s). The hypothetical hydrostatic isothermal U{sub s}–U{sub p} Hugoniot curve, which corresponds to the hydrostatic isothermal compression curve derived from the Hugoniot data using the strength data, converged to the bulk sound velocity, clearly showing shear strength dependence in the Hugoniot data. The EOS for tungsten is derived from the hydrostatic isothermal compression curvemore »
 Authors:

 Institute of Pulsed Power Science, Kumamoto University, Kumamoto 8608555 (Japan)
 Sojo University, Kumamoto 8600082 (Japan)
 BenGurion University of the Negev, P.O. Box 653, Beer Sheva 84105 (Israel)
 Itochu TechnoSolutions Corporation, Tokyo 1006080 (Japan)
 Kyushu University, Fukuoka 8128581 (Japan)
 Publication Date:
 OSTI Identifier:
 22494934
 Resource Type:
 Journal Article
 Journal Name:
 Journal of Applied Physics
 Additional Journal Information:
 Journal Volume: 119; Journal Issue: 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 00218979
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPRESSION; DIAGRAMS; EQUATIONS OF STATE; INTERFEROMETERS; POLYCRYSTALS; PRESSURE RANGE GIGA PA; SHEAR PROPERTIES; SHOCK WAVES; SOUND WAVES; STREAK CAMERAS; TIME RESOLUTION; TUNGSTEN; VELOCITY
Citation Formats
Mashimo, Tsutomu, Liu, Xun, Kodama, Masao, Zaretsky, Eugene, Katayama, Masahide, and Nagayama, Kunihiko. Effect of shear strength on Hugoniotcompression curve and the equation of state of tungsten (W). United States: N. p., 2016.
Web. doi:10.1063/1.4939725.
Mashimo, Tsutomu, Liu, Xun, Kodama, Masao, Zaretsky, Eugene, Katayama, Masahide, & Nagayama, Kunihiko. Effect of shear strength on Hugoniotcompression curve and the equation of state of tungsten (W). United States. doi:10.1063/1.4939725.
Mashimo, Tsutomu, Liu, Xun, Kodama, Masao, Zaretsky, Eugene, Katayama, Masahide, and Nagayama, Kunihiko. Thu .
"Effect of shear strength on Hugoniotcompression curve and the equation of state of tungsten (W)". United States. doi:10.1063/1.4939725.
@article{osti_22494934,
title = {Effect of shear strength on Hugoniotcompression curve and the equation of state of tungsten (W)},
author = {Mashimo, Tsutomu and Liu, Xun and Kodama, Masao and Zaretsky, Eugene and Katayama, Masahide and Nagayama, Kunihiko},
abstractNote = {The Hugoniot data for highly dense polycrystalline tungsten were obtained for pressures above 200 GPa, and the equation of state (EOS) was determined taking into account shear strength effects. For this study, we have made some improvements in measurement system and analyses of the shock wave data. Symmetricimpact Hugoniot measurements were performed using the hightime resolution streak camera system equipped on a onestage powder gun and twostage light gas gun, where the effects of tilting and bowing of flyer plate on the Hugoniot data were carefully considered. The shock velocity–particle velocity (U{sub S}–U{sub P}) Hugoniot relation in the plastic regime was determined to be U{sub S} = 4.137 + 1.242U{sub P} km/s (U{sub P} < 2 km/s). Ultrasonic and Velocity Interferometer System for Any Reflector measurements were also performed in this study. The zerointercept value of the U{sub S}–U{sub P} Hugoniot relation was found to be slightly larger than the ultrasonic bulk sound velocity (4.023 km/s). The hypothetical hydrostatic isothermal U{sub s}–U{sub p} Hugoniot curve, which corresponds to the hydrostatic isothermal compression curve derived from the Hugoniot data using the strength data, converged to the bulk sound velocity, clearly showing shear strength dependence in the Hugoniot data. The EOS for tungsten is derived from the hydrostatic isothermal compression curve using the strength data.},
doi = {10.1063/1.4939725},
journal = {Journal of Applied Physics},
issn = {00218979},
number = 3,
volume = 119,
place = {United States},
year = {2016},
month = {1}
}