Effect of preloading on the formation of adiabatic localized shear in copper

This paper presents the results of a study of the formation of localized shear in M1 copper of two types: as-received and after preloading by a quasi-entropic compression wave. The experiments were performed with hat-shaped samples using the split Hopkinson bar method. For both types of copper, dyna...

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Bibliographic Details
Published inCombustion, explosion, and shock waves Vol. 49; no. 5; pp. 620 - 624
Main Authors Pushkov, V. A., Yurlov, A. V., Podurets, A. M., Tsibikov, A. N., Tkachenko, M. I., Balandina, A. N.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.09.2013
Subjects
Adiabatic flow
Classical and Continuum Physics
Classical Mechanics
Compressing
Compression waves
Control
Copper
Dynamical Systems
Engineering
EXPLOSIONS
MECHANICAL PROPERTIES
METALLOGRAPHY
Physical Chemistry
Physics
Physics and Astronomy
Shear
Strain hardening
STRAIN HARDENING MECHANISMS
Strain rate
Vibration
hardening
preloading
plastic deformation
adiabatic shear
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Summary:This paper presents the results of a study of the formation of localized shear in M1 copper of two types: as-received and after preloading by a quasi-entropic compression wave. The experiments were performed with hat-shaped samples using the split Hopkinson bar method. For both types of copper, dynamic compression diagrams were obtained at strain rates of 2100–2500 s −1 . The copper structure was subjected to metallographic analysis, and the effect of preliminary shock deformation on the dynamic mechanical properties of the material was estimated. It is shown that preloaded higher-strength metals with a smaller degree of strain hardening are more prone to the formation of adiabatic shear bands.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508213050146