Cylindrical indentation induced deformation in face-centered cubic metal single crystals

Yong Xue GAN*, Yuki SAITO, Xi CHEN

*Corresponding author for this work

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

2 Citations (Scopus)


We investigate the deformation field induced by a cylindrical indentation on a face-centered cubic single crystal of aluminum or copper. We first present experimental measurements of the load-displacement curve and the crystal lattice rotation field (under plane strain condition) of an aluminum single crystal subject to indentation, together with related results for a copper crystal. Next, finite element simulations of the lattice rotation and displacement field associated with the cylindrical indentation are provided. The numerical and experimental results about lattice rotation features are compared with theoretical predictions based on the single crystal plasticity. Finally, the displacement fields obtained from the numerical solutions and experiments are compared. Both electron backscatter diffraction experiments using scanning electron microscopy and finite element simulations show the existence of different slip sector boundaries in the single crystals, in agreement with theoretical predictions of active slip systems and dislocation structures.

Original languageEnglish
Pages (from-to)557-572
Number of pages16
JournalJournal of Mechanics of Materials and Structures
Issue number3
Publication statusPublished - Mar 2007
Externally publishedYes

Bibliographical note

This work is supported by a research initiation fund from Department of Mechanical Engineering at The Cooper Union. The numerical work is supported by the National Science Foundation (CMS-0407743). The experimental work is also supported in part by Columbia Nanomechanics Research Center. We acknowledge the usage of the shared experimental facilities at Columbia University.


  • Anisotropic plasticity
  • Deformation field
  • Indentation
  • Lattice rotation map
  • Numerical simulations
  • Single crystal


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