Friction effect on indentation

Fan Zhang*, Keh Chih Hwang, Yong Gang Huang, Jiang Qin

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Microindentation is a classical experiment which shows a size-dependent material behavior under nonuniform deformation at micron and submicron scales. Many investigations on microindentation have been carried out under frictionless assumption while less discussion has been undertaken on the friction effect. Based on a conventional theory of mechanism based strain gradient plasticity (CMSG), a FEM analysis was developed to investigate the friction effect on micro-indentation. For the widely used Berkovich indenter, which can be simplified to a conical indenter with 140.6° cone angle, the result shows that the friction effect was negligible and the problem could be simplified to be frictionless.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalGongcheng Lixue/Engineering Mechanics
Volume23
Issue numberSUPPL.
StatePublished - Jun 1 2006

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Indentation
Friction
Plasticity
Cones
Finite element method
Experiments

Keywords

  • Friction
  • Indentation
  • Size dependent effect
  • Solid mechanics
  • Strain gradient

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Zhang, F., Hwang, K. C., Huang, Y. G., & Qin, J. (2006). Friction effect on indentation. Gongcheng Lixue/Engineering Mechanics, 23(SUPPL.), 1-6.
Zhang, Fan ; Hwang, Keh Chih ; Huang, Yong Gang ; Qin, Jiang. / Friction effect on indentation. In: Gongcheng Lixue/Engineering Mechanics. 2006 ; Vol. 23, No. SUPPL. pp. 1-6.
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Zhang, F, Hwang, KC, Huang, YG & Qin, J 2006, 'Friction effect on indentation', Gongcheng Lixue/Engineering Mechanics, vol. 23, no. SUPPL., pp. 1-6.

Friction effect on indentation. / Zhang, Fan; Hwang, Keh Chih; Huang, Yong Gang; Qin, Jiang.

In: Gongcheng Lixue/Engineering Mechanics, Vol. 23, No. SUPPL., 01.06.2006, p. 1-6.

Research output: Contribution to journalArticle

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AU - Zhang, Fan

AU - Hwang, Keh Chih

AU - Huang, Yong Gang

AU - Qin, Jiang

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N2 - Microindentation is a classical experiment which shows a size-dependent material behavior under nonuniform deformation at micron and submicron scales. Many investigations on microindentation have been carried out under frictionless assumption while less discussion has been undertaken on the friction effect. Based on a conventional theory of mechanism based strain gradient plasticity (CMSG), a FEM analysis was developed to investigate the friction effect on micro-indentation. For the widely used Berkovich indenter, which can be simplified to a conical indenter with 140.6° cone angle, the result shows that the friction effect was negligible and the problem could be simplified to be frictionless.

AB - Microindentation is a classical experiment which shows a size-dependent material behavior under nonuniform deformation at micron and submicron scales. Many investigations on microindentation have been carried out under frictionless assumption while less discussion has been undertaken on the friction effect. Based on a conventional theory of mechanism based strain gradient plasticity (CMSG), a FEM analysis was developed to investigate the friction effect on micro-indentation. For the widely used Berkovich indenter, which can be simplified to a conical indenter with 140.6° cone angle, the result shows that the friction effect was negligible and the problem could be simplified to be frictionless.

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KW - Indentation

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KW - Strain gradient

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Zhang F, Hwang KC, Huang YG, Qin J. Friction effect on indentation. Gongcheng Lixue/Engineering Mechanics. 2006 Jun 1;23(SUPPL.):1-6.