Numerical and experimental studies of deep indentation on single crystals

Yong X. GAN, Xi CHEN, Manhong ZHAO

Research output: Journal PublicationsJournal Article (refereed)peer-review

5 Citations (Scopus)


Indentation tests with large penetration depths have been used to study the plastic deformation behavior of materials. In this work, finite element simulations of wedge indentation into face-centered cubic single crystals were performed. Numerical solutions to the stresses and shear strains within the single crystals indented with a relatively large penetration depth were obtained. The crystal lattice rotation map of the indented crystals was also shown. Indentation experiments were conducted on copper crystals and the results were used to validate the numerical predictions. Comparison of the numerical solutions to the crystal lattice rotation with the experimentally measured lattice rotation map was made. The main features of the crystal lattice in-plane rotation map from the finite element simulations are also found on the map developed from the electron backscatter diffraction measurements. Both simulations and experimental measurements reveal the same dislocation structures as evidenced by the slip sectors underneath the wedge indentation zone.
Original languageEnglish
Pages (from-to)1429-1445
Number of pages17
JournalJournal of Mechanics of Materials and Structures
Issue number8
Publication statusPublished - Oct 2008
Externally publishedYes


  • Copper crystal
  • Crystal lattice rotation
  • Dislocation structure
  • Electron backscatter diffraction
  • Finite element simulation
  • Indentation
  • Plastic deformation
  • Shear strain
  • Slip
  • Stress field


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