Effects of plastic distortion in the lattice curvature zone of a crack tip

V. E. Panin, D. D. Moiseenko, P. V. Maksimov, S. V. Panin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The paper proposes a discrete-continual method of excitable cellular automata for simulating the stress-strain state at crack tips and in notches with account of lattice curvature and plastic distortion through ion motion from lattice sites to interstices. The proposed nonlinear method allows one to determine the crack type and the character of fracture, to predict the possibility of dynamic rotations and structural turbulence, and to describe the processes of nonlinear wave structural transformations in strain localization bands involved in microporosity and tearing mode cracking.

Original languageEnglish
Pages (from-to)280-290
Number of pages11
JournalPhysical Mesomechanics
Volume20
Issue number3
DOIs
Publication statusPublished - 1 Jul 2017

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Keywords

  • cracks
  • dynamic rotations
  • fracture
  • lattice curvature
  • plastic distortion
  • singularity
  • structural turbulence

ASJC Scopus subject areas

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

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