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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" }