The Macroscopic Phenomena in Plasticity

In this paper, the fundamental principles of plastic flow localization are briefly outlined. During the development of plastic flow, there is a changeover in the localization patterns conforming to the corresponding stage of work hardening based on the autowave nature of plastic flow localization. I...

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Main Authors: Lev Zuev, Svetlana Barannikova
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/13/2/278
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author Lev Zuev
Svetlana Barannikova
author_facet Lev Zuev
Svetlana Barannikova
author_sort Lev Zuev
collection DOAJ
description In this paper, the fundamental principles of plastic flow localization are briefly outlined. During the development of plastic flow, there is a changeover in the localization patterns conforming to the corresponding stage of work hardening based on the autowave nature of plastic flow localization. In particular, the evolution of plastic flow from yield point to fracture involves the following four stages of autowave generation: switching autowave → phase autowave → stationary dissipative structure → collapse of autowave. The most intriguing localization pattern is attributed to a phase autowave, which forms at the stage of linear work hardening. The characteristics of the phase autowave (propagation velocity, dispersion, and grain size dependence of the wavelength) have been determined experimentally. Moreover, an elastic-plastic strain invariant is introduced to describe the elastic and plastic properties of the deforming medium, as well as to establish the above characteristics of autowaves. A hypothetic quasi-particle, corresponding to the autowave of localized plasticity, is considered and its potential properties are estimated to interpret the localization process characteristics.
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spelling doaj.art-731cb8de41924c77b84294988ddd812f2023-11-16T22:07:08ZengMDPI AGMetals2075-47012023-01-0113227810.3390/met13020278The Macroscopic Phenomena in PlasticityLev Zuev0Svetlana Barannikova1Laboratory of Strength Physics, Institute of Strength Physics and Materials Science SB RAS, 634055 Tomsk, RussiaLaboratory of Strength Physics, Institute of Strength Physics and Materials Science SB RAS, 634055 Tomsk, RussiaIn this paper, the fundamental principles of plastic flow localization are briefly outlined. During the development of plastic flow, there is a changeover in the localization patterns conforming to the corresponding stage of work hardening based on the autowave nature of plastic flow localization. In particular, the evolution of plastic flow from yield point to fracture involves the following four stages of autowave generation: switching autowave → phase autowave → stationary dissipative structure → collapse of autowave. The most intriguing localization pattern is attributed to a phase autowave, which forms at the stage of linear work hardening. The characteristics of the phase autowave (propagation velocity, dispersion, and grain size dependence of the wavelength) have been determined experimentally. Moreover, an elastic-plastic strain invariant is introduced to describe the elastic and plastic properties of the deforming medium, as well as to establish the above characteristics of autowaves. A hypothetic quasi-particle, corresponding to the autowave of localized plasticity, is considered and its potential properties are estimated to interpret the localization process characteristics.https://www.mdpi.com/2075-4701/13/2/278elasticityplasticitylocalizationpatterncrystal latticeself-organization
spellingShingle Lev Zuev
Svetlana Barannikova
The Macroscopic Phenomena in Plasticity
Metals
elasticity
plasticity
localization
pattern
crystal lattice
self-organization
title The Macroscopic Phenomena in Plasticity
title_full The Macroscopic Phenomena in Plasticity
title_fullStr The Macroscopic Phenomena in Plasticity
title_full_unstemmed The Macroscopic Phenomena in Plasticity
title_short The Macroscopic Phenomena in Plasticity
title_sort macroscopic phenomena in plasticity
topic elasticity
plasticity
localization
pattern
crystal lattice
self-organization
url https://www.mdpi.com/2075-4701/13/2/278
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AT levzuev macroscopicphenomenainplasticity
AT svetlanabarannikova macroscopicphenomenainplasticity