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Investigation of hydrodynamic instability growth in copper

Sternberger, Z. and Opachich, Y. and Wehrenberg, C. and Kraus, R. and Remington, B. and Alexander, N. and Randall, G. and Farrell, M. and Ravichandran, G. (2018) Investigation of hydrodynamic instability growth in copper. International Journal of Mechanical Sciences, 149 . pp. 475-480. ISSN 0020-7403.

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Hydrodynamic instability experiments allow access to material properties at strain rates above 10^5 s^(-1). Existing models of material strength are not extensively validated at these strain rates. Recovery instability experiments were developed for copper samples. In conjunction with simulations using the hydrocode CTH, these experiments constrain the strength of copper at strain rates near 10^7 s^(-1) providing an alternative technique to validate material properties at these strain rates. Mesh sensitivity in the present simulations contributed large uncertainty to the strength inferred from recovery instability experiments.

Item Type:Article
Related URLs:
URLURL TypeDescription
Sternberger, Z.0000-0002-7612-673X
Opachich, Y.0000-0003-1432-3989
Kraus, R.0000-0003-2752-0121
Randall, G.0000-0002-8375-9041
Ravichandran, G.0000-0002-2912-0001
Additional Information:© 2017 Elsevier. Received 30 March 2017, Revised 24 August 2017, Accepted 26 August 2017, Available online 30 August 2017.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC52-07NA27344
Department of Energy (DOE)DE-NA0001805
Subject Keywords:Hydrodynamic instability; Copper; Material strength
Record Number:CaltechAUTHORS:20181029-094836709
Persistent URL:
Official Citation:Z. Sternberger, Y. Opachich, C. Wehrenberg, R. Kraus, B. Remington, N. Alexander, G. Randall, M. Farrell, G. Ravichandran, Investigation of hydrodynamic instability growth in copper, International Journal of Mechanical Sciences, Volume 149, 2018, Pages 475-480, ISSN 0020-7403, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90447
Deposited By: George Porter
Deposited On:29 Oct 2018 18:15
Last Modified:09 Mar 2020 13:19

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