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

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.344331· OSTI ID:5920219

Tonks, D L

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.

• Research Organization: Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (US)
• OSTI ID: 5920219
• Journal Information: J. Appl. Phys.; (United States), Vol. 66:5
• Country of Publication: United States
• Language: English

Related Subjects

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