Compression wave studies in Solenhofen limestone
Dynamic compression wave studies have been conducted on Solenhofen limestone in the stress range of 0 to 3.0 GPa. Plate impact techniques were used to provide a transient stress input and diffuse reflector laser interferometry was used to study the evolution of these pulses through various thicknesses of limestone. Both the loading and unloading stress-strain response was determined from the measured particle velocity profiles. A dynamic yield stress of 0.67 +- .05 GPa was observed which is consistent with static failure envelope data. However, there is a marked difference between the dynamic and hydrostatic stress-strain curves at stress levels where the calcite I ..-->.. II ..-->.. III phase transitions occur. It appears that the phase transitions which occur during shock wave loading do not take the material fully into the high pressure phase but instead reach a metastable mixed phase condition.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 7106653
- Report Number(s):
- SAND-76-0279
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ultrasonic propagation in Solenhofen limestone at high pressures. [5 and 10 MHz, up to 25 kbar]
Compression wave studies in Oakhall limestone