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Title: Influence of Shock Prestraining and Grain Size on the Dynamic-Tensile-Extrusion Response of Copper: Experiments and Simulation

Abstract

The mechanical behavior of, and damage evolution in high-purity Cu is influenced by strain rate, temperature, stress state, grain size, and shock prestraining. The effects of grain size on the tensile mechanical response of high-purity Cu have been probed and are correlated with the evolution of the substructure. The dynamic extrusion response of shock prestrained Cu demonstrates the significant influence of grain size on the large-strain dynamic tensile ductility of high-purity copper. Eulerian hydrocode simulations utilizing the Mechanical Threshold Stress constitutive model were performed to provide insight into the dynamic extrusion process. Quantitative comparisons between the predicted and measured deformation topologies and extrusion rates are presented.

Authors:
; ; ; ; ; ; ; ;  [1];  [2];  [3]
  1. MST-8, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)
  2. X-4, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)
  3. T-3, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)
Publication Date:
OSTI Identifier:
20875761
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 845; Journal Issue: 1; Conference: American Physical Society Topical Group conference on shock compression of condensed matter, Baltimore, MD (United States), 31 Jul - 5 Aug 2005; Other Information: DOI: 10.1063/1.2263424; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; COPPER; DAMAGE; DEFORMATION; DUCTILITY; EVOLUTION; GRAIN SIZE; PRESSURE DEPENDENCE; SHOCK WAVES; STRAIN RATE; STRAINS; STRESSES; TEMPERATURE DEPENDENCE; TOPOLOGY

Citation Formats

Gray, III, G T, Cerreta, E, Yablinsky, C A, Addessio, L B, Henrie, B L, Sencer, B H, Maloy, S A, Trujillo, C P, Lopez, M F, Burkett, M, and Maudlin, P J. Influence of Shock Prestraining and Grain Size on the Dynamic-Tensile-Extrusion Response of Copper: Experiments and Simulation. United States: N. p., 2006. Web. doi:10.1063/1.2263424.
Gray, III, G T, Cerreta, E, Yablinsky, C A, Addessio, L B, Henrie, B L, Sencer, B H, Maloy, S A, Trujillo, C P, Lopez, M F, Burkett, M, & Maudlin, P J. Influence of Shock Prestraining and Grain Size on the Dynamic-Tensile-Extrusion Response of Copper: Experiments and Simulation. United States. https://doi.org/10.1063/1.2263424
Gray, III, G T, Cerreta, E, Yablinsky, C A, Addessio, L B, Henrie, B L, Sencer, B H, Maloy, S A, Trujillo, C P, Lopez, M F, Burkett, M, and Maudlin, P J. 2006. "Influence of Shock Prestraining and Grain Size on the Dynamic-Tensile-Extrusion Response of Copper: Experiments and Simulation". United States. https://doi.org/10.1063/1.2263424.
@article{osti_20875761,
title = {Influence of Shock Prestraining and Grain Size on the Dynamic-Tensile-Extrusion Response of Copper: Experiments and Simulation},
author = {Gray, III, G T and Cerreta, E and Yablinsky, C A and Addessio, L B and Henrie, B L and Sencer, B H and Maloy, S A and Trujillo, C P and Lopez, M F and Burkett, M and Maudlin, P J},
abstractNote = {The mechanical behavior of, and damage evolution in high-purity Cu is influenced by strain rate, temperature, stress state, grain size, and shock prestraining. The effects of grain size on the tensile mechanical response of high-purity Cu have been probed and are correlated with the evolution of the substructure. The dynamic extrusion response of shock prestrained Cu demonstrates the significant influence of grain size on the large-strain dynamic tensile ductility of high-purity copper. Eulerian hydrocode simulations utilizing the Mechanical Threshold Stress constitutive model were performed to provide insight into the dynamic extrusion process. Quantitative comparisons between the predicted and measured deformation topologies and extrusion rates are presented.},
doi = {10.1063/1.2263424},
url = {https://www.osti.gov/biblio/20875761}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 845,
place = {United States},
year = {Fri Jul 28 00:00:00 EDT 2006},
month = {Fri Jul 28 00:00:00 EDT 2006}
}