Special features of strain-induced surface roughness formed in specimens with curvilinear geometry of the hardened surface layer-substrate interface

Ruslan Revovich Balokhonov, V. A. Romanova, S. A. Martynov

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The paper studies the formation of strain-induced roughness on an initially flat surface of materials with a modified surface layer in tension. The dynamic boundary value problem of mechanics is solved numerically by the finite difference method for plane strain. The curvilinear surface layer-substrate interface is specified explicitly in the calculations. The mechanical response of the steel substrate and surface layer is described by elastoplastic models with isotropic hardening and elastic-brittle fracture models, respectively. The surface roughness shape and amplitude are found to depend on the thickness of both elastic and high-strength plastic layers with sinusoidal geometry of the hardened layer-substrate interface.

Original languageEnglish
Pages (from-to)81-87
Number of pages7
JournalPhysical Mesomechanics
Volume18
Issue number1
DOIs
Publication statusPublished - 2015
Externally publishedYes

Fingerprint

surface layers
surface roughness
Surface roughness
Geometry
Substrates
geometry
proportional limit
plane strain
high strength
boundary value problems
hardening
flat surfaces
Steel
Brittle fracture
roughness
plastics
Finite difference method
steels
Boundary value problems
Hardening

Keywords

  • curvilinear interface
  • materials with coatings
  • mechanics of structured media
  • numerical modeling

ASJC Scopus subject areas

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

Cite this

Special features of strain-induced surface roughness formed in specimens with curvilinear geometry of the hardened surface layer-substrate interface. / Balokhonov, Ruslan Revovich; Romanova, V. A.; Martynov, S. A.

In: Physical Mesomechanics, Vol. 18, No. 1, 2015, p. 81-87.

Research output: Contribution to journalArticle

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