Self-organization of plastic shears in localized deformation macrobands in the neck of high-strength polycrystals, its role in material fracture under uniaxial tension

L. S. Derevyagina, V. E. Panin, A. I. Gordienko

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Based on the television-optical measurements of displacement vector fields, we study the distribution of shear and linear strain components as well as plastic flow intensity in the neck of flat high-strength polycrystals of steel VKS-12, submicrocrystalline armco-iron and titanium under uniaxial tension. The leading deformation mechanism in the neck is related to the development of two stationary localized plastic flow macrobands in it. The macrobands are self-organized as a cross along the conjugate directions of maximum tangential stresses. The self-consistency of plastic shears in these macrobands governs the specific character of material deformation and fracture in the neck.

Original languageEnglish
Pages (from-to)51-62
Number of pages12
JournalPhysical Mesomechanics
Volume11
Issue number1-2
DOIs
Publication statusPublished - 2008

Fingerprint

Polycrystals
polycrystals
high strength
Plastic flow
plastics
plastic flow
Plastics
shear
Steel
Titanium
Television
Iron
shear strain
optical measurement
titanium
steels
iron
Direction compound

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

@article{37b9bb5809934e7db76d0d49ffbe9949,
title = "Self-organization of plastic shears in localized deformation macrobands in the neck of high-strength polycrystals, its role in material fracture under uniaxial tension",
abstract = "Based on the television-optical measurements of displacement vector fields, we study the distribution of shear and linear strain components as well as plastic flow intensity in the neck of flat high-strength polycrystals of steel VKS-12, submicrocrystalline armco-iron and titanium under uniaxial tension. The leading deformation mechanism in the neck is related to the development of two stationary localized plastic flow macrobands in it. The macrobands are self-organized as a cross along the conjugate directions of maximum tangential stresses. The self-consistency of plastic shears in these macrobands governs the specific character of material deformation and fracture in the neck.",
author = "Derevyagina, {L. S.} and Panin, {V. E.} and Gordienko, {A. I.}",
year = "2008",
doi = "10.1016/j.physme.2008.03.006",
language = "English",
volume = "11",
pages = "51--62",
journal = "Physical Mesomechanics",
issn = "1029-9599",
publisher = "Springer Science + Business Media",
number = "1-2",

}

TY - JOUR

T1 - Self-organization of plastic shears in localized deformation macrobands in the neck of high-strength polycrystals, its role in material fracture under uniaxial tension

AU - Derevyagina, L. S.

AU - Panin, V. E.

AU - Gordienko, A. I.

PY - 2008

Y1 - 2008

N2 - Based on the television-optical measurements of displacement vector fields, we study the distribution of shear and linear strain components as well as plastic flow intensity in the neck of flat high-strength polycrystals of steel VKS-12, submicrocrystalline armco-iron and titanium under uniaxial tension. The leading deformation mechanism in the neck is related to the development of two stationary localized plastic flow macrobands in it. The macrobands are self-organized as a cross along the conjugate directions of maximum tangential stresses. The self-consistency of plastic shears in these macrobands governs the specific character of material deformation and fracture in the neck.

AB - Based on the television-optical measurements of displacement vector fields, we study the distribution of shear and linear strain components as well as plastic flow intensity in the neck of flat high-strength polycrystals of steel VKS-12, submicrocrystalline armco-iron and titanium under uniaxial tension. The leading deformation mechanism in the neck is related to the development of two stationary localized plastic flow macrobands in it. The macrobands are self-organized as a cross along the conjugate directions of maximum tangential stresses. The self-consistency of plastic shears in these macrobands governs the specific character of material deformation and fracture in the neck.

UR - http://www.scopus.com/inward/record.url?scp=42049092793&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42049092793&partnerID=8YFLogxK

U2 - 10.1016/j.physme.2008.03.006

DO - 10.1016/j.physme.2008.03.006

M3 - Article

VL - 11

SP - 51

EP - 62

JO - Physical Mesomechanics

JF - Physical Mesomechanics

SN - 1029-9599

IS - 1-2

ER -