Comparative Analysis of Dynamic Plasticity Models

In the paper, a new phenomenological interpretation of some of the principal temporal effects of high-rate plastic deformation of metals from a united viewpoint is represented. A comparative analysis of some of the well-known dynamic plastic deformation models is given. Influence of strain rate on t...

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Bibliographic Details
Published inReviews on advanced materials science Vol. 57; no. 2; pp. 199 - 211
Main Authors Selyutina, N.S., Petrov, Yu.V.
Format Journal Article
LanguageEnglish
Published Sciendo 01.07.2018
De Gruyter
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Summary:In the paper, a new phenomenological interpretation of some of the principal temporal effects of high-rate plastic deformation of metals from a united viewpoint is represented. A comparative analysis of some of the well-known dynamic plastic deformation models is given. Influence of strain rate on the stress-strain relation in a wide range of strain rates for different types of aluminum alloys and steels is described by the relaxation model of plasticity, by original and improved empirical Johnson-Cook models, and by the phenomenological Rusinek-Klepaczko model. It is shown that the structural-time model (“the relaxation model of plasticity”) is capable to effectively predict a wide spectrum of materials responses to fast and slow dynamic loading.
ISSN:1605-8127
1605-8127
DOI:10.1515/rams-2018-0065