Computer simulations of nanoindentation on Cu (1 1 1) with a void

Chung Ming Tan, Yeau Ren Jeng

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

This paper employs static atomistic simulations to investigate the effect of a void on the nanoindentation of Cu (1 1 1). The simulations minimize the potential energy of the complete system via finite element formulation to identify the equilibrium configuration of any deformed state. The size and depth of the void are treated as two variable parameters. The numerical results reveal that the void disappears when the indentation depth is sufficiently large. A stress concentration is observed at the internal surface of the void in all simulations cases. The results indicate that the presence of a void has a significant influence on the nanohardness extracted from the nanoindentation tests.

Original languageEnglish
Pages (from-to)1884-1889
Number of pages6
JournalInternational Journal of Solids and Structures
Volume46
Issue number9
DOIs
Publication statusPublished - 2009 May 1

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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