The plastic shear channeling effect and the nonlinear waves of localized plastic deformation and fracture

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Approaches adopted in physical mesomechanics and nonequilibrium thermodynamics are combined in an integrated framework to examine the mechanisms involved in generation of nonlinear waves of localized plastic deformation and fracture in a loaded solid treated as a multiscale system. It has been found that in a loaded solid, local structural transformation fluxes develop at the nanoscale level and undergo channeling at the mesoscale level, whereas accommodation kink bands form at the macroscale level. Generation of the nonlinear waves of localized plastic flow is shown to be due to self-organization of the three processes in question. In the case where work hardening takes place at deformation, traveling waves of localized plastic flow are eventually transformed into steady-state phase failure waves localized at the macroscale level. In a hierarchy of mesoscale levels, propagation of channeled local structural transformations in a heterogeneous medium gives rise to strain-induced defects, such as dislocations, mesoscale shear bands, etc. These deformation mechanisms define the dissipative components of the overall plastic flow process developing in solid bodies under loading. A theory of nonlinear waves of localized plastic flow in a deformed material is proposed. The theoretical predictions made conform with experimental data known from the available literature.

Original languageEnglish
Pages (from-to)215-232
Number of pages18
JournalPhysical Mesomechanics
Volume13
Issue number5-6
DOIs
Publication statusPublished - 2010

Fingerprint

plastic flow
plastic deformation
Plastic deformation
Plastic flow
plastics
Plastics
shear
kink bands
Case hardening
nonequilibrium thermodynamics
work hardening
Shear bands
accommodation
Strain hardening
traveling waves
hierarchies
Thermodynamics
Fluxes
thermodynamics
Defects

Keywords

  • Fracture
  • Nonequilibrium thermodynamics
  • Nonlinear waves
  • Physical mesomechanics
  • Plastic deformation

ASJC Scopus subject areas

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

Cite this

The plastic shear channeling effect and the nonlinear waves of localized plastic deformation and fracture. / Panin, V. E.; Egorushkin, V. E.; Panin, Alexey Victorovich.

In: Physical Mesomechanics, Vol. 13, No. 5-6, 2010, p. 215-232.

Research output: Contribution to journalArticle

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