An analytical expression for the stress field around an elastoplastic indentation/contact

G. Feng*, S. Qu, Y. Huang, W. D. Nix

*Corresponding author for this work

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

The stress distribution outside the contact-induced plastic zone can be estimated by the superposition of a Hertzian field and the field for an embedded center of dilatation (ECD) in a half-space, while the residual stress distribution can be estimated by the ECD field alone. This model has a simple closed-form analytical expression, matching with finite element results nearly perfectly.

Original languageEnglish (US)
Pages (from-to)2929-2938
Number of pages10
JournalActa Materialia
Volume55
Issue number9
DOIs
StatePublished - May 1 2007

Fingerprint

Indentation
Stress concentration
Residual stresses
Plastics

Keywords

  • Analytical methods
  • Finite element method
  • Hardness
  • Nanoindentation
  • Plastic deformation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

Feng, G. ; Qu, S. ; Huang, Y. ; Nix, W. D. / An analytical expression for the stress field around an elastoplastic indentation/contact. In: Acta Materialia. 2007 ; Vol. 55, No. 9. pp. 2929-2938.
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An analytical expression for the stress field around an elastoplastic indentation/contact. / Feng, G.; Qu, S.; Huang, Y.; Nix, W. D.

In: Acta Materialia, Vol. 55, No. 9, 01.05.2007, p. 2929-2938.

Research output: Contribution to journalArticle

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AU - Nix, W. D.

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KW - Plastic deformation

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