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2169 steel waveform measurements for equation of state and strength determination
3. J. L. Wise and D. E. Mikkola, in Shock Waves in Condensed Matter – 1987, edited by S. C. Schmidt and N. C. Holmes (Elsevier, 1988), pp. 261–264.
11. J. L. Wise and L. C. Chhabildas, in Shock Waves in Condensed Matter, edited by Y. M. Gupta (Plenum, 1986), pp. 441–454.
12. M. D. Furnish, C. S. Alexander, J. L. Brown, and W. D. Reinhart, Sandia National Laboratories Report, SAND2012-9770, Sandia National Laboratories, Albuquerque, NM 87185, 2012.
17. J. R. Asay and L. C. Chhabildas, in Shock Waves and High-Strain-Rate Phenomena in Metals: Concepts and Applications, edited by M. A. Meyers and L. E. Murr (Plenum, 1981), pp. 417–431.
19.This code implements the incremental impedance matching methods described in Vogler et al.15 and Lipkin and Asay.20
21. L. Davison, Fundamentals of Shock Wave Propagation in Solids (Springer-Verlag, 2008).
22. D. J. Steinberg, Lawrence Livermore National Laboratories Report, UCRL-MA-106439 (change 1), Lawrence Livermore National Laboratories, Livermore, CA 94550, 1996.
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In support of efforts to develop multiscale models of a variety of materials, we have performed a set of eleven gas gun impact experiments on 2169 steel, a high-strength austenitic stainless steel. These experiments provided carefully controlled shock, reshock, and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa. Both windowed and free-surface measurements on samples ranging in thickness from 1 to 5 mm were made to increase the utility of the data set. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release/reshock paths (windowed and free-surface), with associated strength information. The Hugoniot is nearly linear in US
space. Reshock tests with explosively welded impactors produced clean results, by contrast with earlier reshock tests with glued impactors which showed gap signatures. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for thin (1 mm) samples than for thicker (2 or 4 mm) samples. A preliminary strength analysis suggests the flow strength increases with stress from ∼1 GPa to ∼2.5 GPa over this range, consistent with other recent work but about 25% above the Steinberg model.
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