Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study

Murat Demiral, Anish Roy, Tamer S. El Sayed, Vadim V. Silberschmidt

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

In this paper the texture evolution in nano-indentation experiments was investigated numerically. To achieve this, a three-dimensional implicit finite-element model incorporating a strain-gradient crystal-plasticity theory was developed to represent accurately the deformation of a body-centred cubic metallic material. A hardening model was implemented to account for strain hardening of the involved slip systems. The surface topography around indents in different crystallographic orientations was compared to corresponding lattice rotations. The influence of strain gradients on the prediction of lattice rotations in nano-indentation was critically assessed. © 2014 Elsevier B.V..
Original languageEnglish (US)
Pages (from-to)73-81
Number of pages9
JournalMaterials Science and Engineering: A
Volume608
DOIs
StatePublished - Jul 2014

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Mechanical Engineering
  • Condensed Matter Physics

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