Shear wave measurements in shock-induced, high-pressure phases
Structural phase transformations under shock loading are of considerable interest for understanding the response of solids under nonhydrostatic stresses and at high strain-rates. Examining shock-induced transformations from continuum level measurements is fundamentally constrained by the inability to directly identify microscopic processes, and also by the limited number of material properties that can be directly measured. ne latter limitation can be reduced by measuring both shear and compression waves using Lagrangian gauges in combined, compression and shear loading. The shear wave serves as an important, real-time probe of the shocked state and unloading response. Using results from a recent study of CaCO{sub 3}, the unique information obtained from the shear wave speed and the detailed structure of the shear wave are shown to be useful for distinguishing the effects of phase transformations from yielding, as well as in characterizing the high-pressure phases and the yielding process under shock loading.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10166120
- Report Number(s):
- LA-UR-93-2319; CONF-9306167-9; ON: DE93016461
- Resource Relation:
- Journal Volume: 309; Conference: 14. international conference on high pressure science and technology and 1993 technical meeting of the topical group on shock compression of condensed matter,Colorado Springs, CO (United States),28 Jun - 3 Jul 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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