Mesoscale analysis of deformation and fracture in coated materials

Ruslan Revovich Balokhonov, V. A. Romanova, S. Schmauder, E. Schwab

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The deformation and fracture of a coated material are simulated. A dynamic boundary-value problem in a plane strain formulation is solved numerically by the finite-difference method. To simulate the mechanical response of the steel substrate use was made of the relaxation constitutive equation based on microscopic dislocation mechanisms. A fracture criterion takes into account crack origination and growth in the elastic-brittle coating. Numerical experiments were conducted for varying strain rate of tension and compression. Macroscopic behavior of the coated material is shown to be controlled by interrelated processes of localized plastic flow in the substrate and cracking of the coating that strongly depends on an external strain rate.

Original languageEnglish
Pages (from-to)306-311
Number of pages6
JournalComputational Materials Science
Volume64
DOIs
Publication statusPublished - Nov 2012
Externally publishedYes

Fingerprint

Coated materials
Strain Rate
strain rate
Coating
Strain rate
Substrate
coatings
Coatings
plastic flow
Steel
plane strain
Plane Strain
constitutive equations
Cracking
Substrates
Constitutive Equation
Constitutive equations
Dislocation
Plastic flow
Finite difference method

Keywords

  • Boundary-value problem
  • Coated materials
  • Computational mechanics
  • Localized plastic flow and fracture
  • Strain rate

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemistry(all)
  • Computer Science(all)
  • Physics and Astronomy(all)
  • Computational Mathematics
  • Mechanics of Materials

Cite this

Mesoscale analysis of deformation and fracture in coated materials. / Balokhonov, Ruslan Revovich; Romanova, V. A.; Schmauder, S.; Schwab, E.

In: Computational Materials Science, Vol. 64, 11.2012, p. 306-311.

Research output: Contribution to journalArticle

Balokhonov, Ruslan Revovich ; Romanova, V. A. ; Schmauder, S. ; Schwab, E. / Mesoscale analysis of deformation and fracture in coated materials. In: Computational Materials Science. 2012 ; Vol. 64. pp. 306-311.
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