Measurement of material properties to Mbar pressures using time-resolved shock wave techniques
Abstract
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.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1985
- Bibcode:
- 1985STIN...8525780A
- Keywords:
-
- Aluminum;
- Equations Of State;
- Materials Tests;
- Shock Waves;
- Strain Hardening;
- Pressure Measurement;
- Temperature Dependence;
- Time Dependence;
- Fluid Mechanics and Heat Transfer