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An iterative forward analysis technique to determine the equation of state of dynamically compressed materials.

Authors :
Ali, S. J.
Kraus, R. G.
Fratanduono, D. E.
Swift, D. C.
Eggert, J. H.
Source :
Journal of Applied Physics; 2017, Vol. 121 Issue 19, p1-9, 9p, 2 Diagrams, 2 Charts, 7 Graphs
Publication Year :
2017

Abstract

We developed an iterative forward analysis (IFA) technique with the ability to use hydrocode simulations as a fitting function for analysis of dynamic compression experiments. The IFA method optimizes over parameterized quantities in the hydrocode simulations, breaking the degeneracy of contributions to the measured material response. Velocity profiles from synthetic data generated using a hydrocode simulation are analyzed as a first-order validation of the technique. We also analyze multiple magnetically driven ramp compression experiments on copper and compare with more conventional techniques. Excellent agreement is obtained in both cases. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00218979
Volume :
121
Issue :
19
Database :
Complementary Index
Journal :
Journal of Applied Physics
Publication Type :
Academic Journal
Accession number :
123168147
Full Text :
https://doi.org/10.1063/1.4983067