Detail publikace

Multiscale modelling of nanoindentation test in Cu crystal

HORNÍKOVÁ, J. ŠANDERA, P. ČERNÝ, M. POKLUDA, J.

Originální název

Multiscale modelling of nanoindentation test in Cu crystal

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Nanoindentation; Ab initio calculation; Ideal shear strength; Copper crystal; Finite element analysis

Autoři

HORNÍKOVÁ, J.; ŠANDERA, P.; ČERNÝ, M.; POKLUDA, J.

Rok RIV

2007

Vydáno

7. 12. 2007

ISSN

0013-7944

Periodikum

Engineering Fracture Mechanics

Ročník

76

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

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"
}