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Title: Rate-dependent plasticity of copper and stainless steel under shock compression

Abstract

Experimental copper and stainless-steel particle velocity profiles are analyzed to determine the plastic strain, plastic strain rate, and deviatoric stress through the shock front. A steady-wave shock analysis is used, together with a numerical characteristics-code calculation to correct for reflections created when the steady wave passes through the sample-window interface. The results are well represented by power-law relations giving the plastic strain rate as powers of the deviatoric stress and plastic strain. The effects of the sample-window interface are found to be minor for windows closely matched in impedance to the sample. The effects of the window on the strain-rate relation are appreciable only near peak compression.

Authors:
Publication Date:
Research Org.:
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (US)
OSTI Identifier:
5920219
Resource Type:
Journal Article
Journal Name:
J. Appl. Phys.; (United States)
Additional Journal Information:
Journal Volume: 66:5
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER; COMPRESSION; STAINLESS STEELS; COMPUTER CALCULATIONS; MATHEMATICAL MODELS; NUMERICAL SOLUTION; PLASTICITY; SHOCK WAVES; STRAINS; ALLOYS; ELEMENTS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; METALS; STEELS; TRANSITION ELEMENTS; 360102* - Metals & Alloys- Structure & Phase Studies

Citation Formats

Tonks, D L. Rate-dependent plasticity of copper and stainless steel under shock compression. United States: N. p., 1989. Web. doi:10.1063/1.344331.
Tonks, D L. Rate-dependent plasticity of copper and stainless steel under shock compression. United States. https://doi.org/10.1063/1.344331
Tonks, D L. 1989. "Rate-dependent plasticity of copper and stainless steel under shock compression". United States. https://doi.org/10.1063/1.344331.
@article{osti_5920219,
title = {Rate-dependent plasticity of copper and stainless steel under shock compression},
author = {Tonks, D L},
abstractNote = {Experimental copper and stainless-steel particle velocity profiles are analyzed to determine the plastic strain, plastic strain rate, and deviatoric stress through the shock front. A steady-wave shock analysis is used, together with a numerical characteristics-code calculation to correct for reflections created when the steady wave passes through the sample-window interface. The results are well represented by power-law relations giving the plastic strain rate as powers of the deviatoric stress and plastic strain. The effects of the sample-window interface are found to be minor for windows closely matched in impedance to the sample. The effects of the window on the strain-rate relation are appreciable only near peak compression.},
doi = {10.1063/1.344331},
url = {https://www.osti.gov/biblio/5920219}, journal = {J. Appl. Phys.; (United States)},
number = ,
volume = 66:5,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 1989},
month = {Fri Sep 01 00:00:00 EDT 1989}
}