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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MDPI AG
2023-01-01
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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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language | English |
last_indexed | 2024-03-11T08:25:12Z |
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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 |
work_keys_str_mv | AT levzuev themacroscopicphenomenainplasticity AT svetlanabarannikova themacroscopicphenomenainplasticity AT levzuev macroscopicphenomenainplasticity AT svetlanabarannikova macroscopicphenomenainplasticity |