Comparison of experimental shock-wave profiles for tungsten and computer simulations using a rate-dependent constitutive model

Conference · Thu Dec 01 00:00:00 EST 1988

OSTI ID:6036032

Steinberg, D. J.

The Steinberg-Guinan-Lund, rate-dependent, constitutive model for Ta has been applied to W. Computer simulation successfully predicts the elastic precursor ahead of the second shock in a series of double-shock experiments. Based on the Cochran-Banner spall model, the spall strength of W is 0.9 +- 0.1 GPa, independent of loading stress from 10 to 200 GPa. The model provides an explanation of why some quasi-isentropes appear stiffer than the principal Hugoniot. 8 refs., 13 figs.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6036032
• Report Number(s): UCRL-100168; CONF-890661-3; ON: DE89006158
• Resource Relation: Conference: 3. international symposium on behavior of media under high dynamic pressures, La Grande Motte, France, 5 Jun 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
TUNGSTEN
MECHANICAL PROPERTIES
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
SHOCK WAVES
STRAINS
STRESSES
TEMPERATURE DEPENDENCE
ELEMENTS
METALS
SIMULATION
TRANSITION ELEMENTS
656003* - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)
360103 - Metals & Alloys- Mechanical Properties