Taylor-based nonlocal theory of plasticity

Huajian Gao*, Yonggang Huang

*Corresponding author for this work

Research output: Contribution to journalArticle

184 Scopus citations

Abstract

A Taylor-based nonlocal theory of plasticity is proposed to account for the size dependence of plastic deformation at micron and submicron length scales. This theory is intended to link Taylor's model of dislocation hardening to a nonlocal theory of plasticity in which the density of geometrically necessary dislocations is expressed as a nonlocal integral of the strain field. We make application of this theory to void growth, cavitation instabilities and particle-reinforced composites, as well as comparison with experiments on micro-torsion, micro-bending and micro-indentation.

Original languageEnglish (US)
Pages (from-to)2615-2637
Number of pages23
JournalInternational Journal of Solids and Structures
Volume38
Issue number15
DOIs
StatePublished - Apr 1 2001

    Fingerprint

Keywords

  • Consitutive theory
  • Dislocations
  • Non-local theory
  • Plasticity
  • Strain gradient plasticity
  • Strengthening mechanics

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

Cite this