On the macroscopic phenomena of plastic flow localization and solids microscopic characteristics

In the paper to be submitted the notions of plastic flow localization are outlined. It is shown that a particular kind of localized plasticity pattern corresponds to a given stage of deformation hardening. In the course of plastic flow development a changeover in the types of localization patterns o...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1115; no. 4; pp. 42038 - 42042
Main Authors Barannikova, S A, Li, Yu V, Zharmukhambetova, A M, Zuev, L B.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2018
Subjects
Elastic deformation
Elastic properties
Localization
Plastic deformation
Plastic flow
Plastic properties
Propagation velocity
Strain
Wave propagation
Work hardening
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Summary:In the paper to be submitted the notions of plastic flow localization are outlined. It is shown that a particular kind of localized plasticity pattern corresponds to a given stage of deformation hardening. In the course of plastic flow development a changeover in the types of localization patterns occurs. It is found that the emergent patterns are manifestations of the autowave nature of plastic flow localization process, each pattern corresponding to a definite type of autowave. The most intriguing localization pattern corresponds to a phase autowave which forms at the stage of linear work hardening. The following characteristics of phase autowave have been determined experimentally: propagation velocity and dispersion dependence of wavelength. Moreover, elastic-plastic strain relation is introduced which relates the elastic and plastic properties of the deforming medium. It is shown that the characteristics of autowaves follow from this relation.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1115/4/042038