Influence of multiscale localized plastic flow on stress-strain patterns

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The paper considers the influence of multiscale plastic flow localization on rotational deformation modes and σ-ɛ curves by analyzing the entropy production and equation of state of a deformed solid. It is shown that if the rotational deformation modes are fully self-consistent, the σ-ɛ curve changes monotonically. If not, the curve reveals jerks or serrations due to nonlinear wave relaxation of stresses associated with macroscale non-compensated material rotations. At high loading rates, the rotational deformation modes attain self-consistency by the mechanism of dynamic rotations.

Original languageEnglish
Pages (from-to)8-12
Number of pages5
JournalPhysical Mesomechanics
Volume18
Issue number1
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • dynamic rotations
  • entropy production
  • equation of state
  • plastic shear localization
  • rotational deformation modes
  • serrations

ASJC Scopus subject areas

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

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