Publication detail
Multiscale modelling of nanoindentation test in Cu crystal
HORNÍKOVÁ, J. ŠANDERA, P. ČERNÝ, M. POKLUDA, J.
English title
Multiscale modelling of nanoindentation test in Cu crystal
Type
Peer-reviewed article not indexed in WoS or Scopus
Language
en
Original abstract
The nanoindentation test in the dislocation free crystal of copper is simulated by a nonlinear elastic finite element analysis coupled with both ab initio calculations of the ideal shear strength and crystallographic considerations. The onset of microplasticity, associated with the pop-in effect identified in experimental nanoindentation tests (creation of first dislocations), is assumed to be related to the moment of achieving the value of the ideal shear strength for the copper crystal. Calculated values of the critical indentation depth lie within the range of experimentally observed pop-ins in the copper crystal. The related indentation load is somewhat lower than that observed in the experiment.
Keywords in English
Nanoindentation; Ab initio calculation; Ideal shear strength; Copper crystal; Finite element analysis
Released
2007-12-07
ISSN
0013-7944
Journal
Engineering fracture mechanics
Volume
76
Number
1
Pages count
8
BIBTEX
@article{BUT44759,
author="Jana {Horníková} and Pavel {Šandera} and Miroslav {Černý} and Jaroslav {Pokluda}",
title="Multiscale modelling of nanoindentation test in Cu crystal",
journal="Engineering fracture mechanics",
year="2007",
volume="76",
number="1",
pages="8",
issn="0013-7944"
}