Measurement of material properties to Mbar pressures using time-resolved shock wave techniques
Shock-wave techniques provide a powerful tool for studying material properties at extremes of pressure and temperature difficult to achieve by other methods. The traditional shock wave experiment provides stress-volume information along a single path, the Hugoniot, on the equation-of-state surface. With the recent development of time-resolved shock wave techniques, it is possible to determine equation-of-state information for a much broader range of P-V-T conditions off the Hugoniot, by making some assumptions about the stress and temperature states achieved in the shocked state. This paper discusses the recent developments in shock-wave methods for achieving off-Hugoniot material properties and present some recent results for unloading and reloading experiments from the shocked state and also isentropic compression measurements in aluminum. Finally, future directions for time-resolved techniques and off-Hugoniot measurements are presented.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5942718
- Report Number(s):
- SAND-84-2657; ON: DE85007319
- Country of Publication:
- United States
- Language:
- English
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