Pressure and particle velocity measurements in solids subjected to dynamic loading
Pressure and particle velocity, parameters which yield to relatively accurate experimental measurements, provide direct ties to theoretical studies, as well as to determining tables of coefficients for an equation of state. At Lawrence Livermore, pressure and particle velocity gauge measurements in both reactive and non-reactive materials are conducted at our large-bore gun facility where projectiles of up to 1.5 kg reach speeds as high as 2.2 mm/..mu..s. Described here are in situ foil gauges for both pressure and particle velocity measurements. In addition the optical Fabry-Perot interferometer for observing particle and free surface velocities in transparent media is discussed. Although these techniques are not new they have been continuously improved and upgraded at our facility to yield greater accuracy, reliability and state of the art performance. Emphasis in this paper is on the operational features of the measuring techniques, but examples of experimental results are also included.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5184705
- Report Number(s):
- UCRL-93213; CONF-8509167-1; ON: DE86000017
- Resource Relation:
- Conference: Laurentiev readings on math, mechanics, and physics, Kiev, USSR, 9 Sep 1985
- Country of Publication:
- United States
- Language:
- English
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