Detail publikace

Numerical study of stress distribution and size effect during AZ31 nanoindentation

ŠIŠKA, F. GUO, T. STRATIL, L. ČÍŽEK, J. BARNETT, M.

Originální název

Numerical study of stress distribution and size effect during AZ31 nanoindentation

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A numerical study of the nano-indentation of the AZ31 alloy was performed in order to analyze the stress fields at the onset of twinning. The model considers indentation of the (10-10) and (1-210) planes by a spherical indenter with radii of 5, 10 and 50 um. Material behavior is described by a crystal plasticity constitutive model with three critical resolved shear stresses for different slip modes. The CRSS values were obtained by fitting to experimental load-displacement curves. The stress and strain distributions are analyzed with a view to understanding twin initiation. The twins initiate during indentation at the stress level order of magnitude higher compare to uniaxial tests.

Klíčová slova

Magnesium alloys; Nanoindentation; Twinning; FEM; Crystal plasticity

Autoři

ŠIŠKA, F.; GUO, T.; STRATIL, L.; ČÍŽEK, J.; BARNETT, M.

Vydáno

1. 1. 2017

Nakladatel

Elsevier

Místo

USA

ISSN

0927-0256

Periodikum

COMPUTATIONAL MATERIALS SCIENCE

Ročník

126

Číslo

1

Stát

Nizozemsko

Strany od

393

Strany do

399

Strany počet

7

URL

http://www.sciencedirect.com/science/article/pii/S0927025616305080

BibTex

@article{BUT132335,
  author="Filip {Šiška} and Tingting {Guo} and Luděk {Stratil} and Jan {Čížek} and Matthew {Barnett}",
  title="Numerical study of stress distribution and size effect during AZ31 nanoindentation",
  journal="COMPUTATIONAL MATERIALS SCIENCE",
  year="2017",
  volume="126",
  number="1",
  pages="393--399",
  doi="10.1016/j.commatsci.2016.10.012",
  issn="0927-0256",
  url="http://www.sciencedirect.com/science/article/pii/S0927025616305080"
}