Detail publikace
Determination of Johnson-Cook equation parameters
ŠLAIS, M. DOHNAL, I. FOREJT, M.
Anglický název
Determination of Johnson-Cook equation parameters
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
The paper deals with the influence of strain rate on the mechanical behaviour of the Ti-6Al-4V titanium alloy. After verification tests under static loading conditions, the specimens were deformed at high strain rates using the device for the Taylor anvil test. Results of an image analysis of deformed specimens from the Taylor anvil test were used as a reference for the comparison of experiment and computer simulation in the ANSYS LS-DYNA 3D program. Using a new developed algorithm the parameters of Johnson-Cook equation were determined to obtain the best possible agreement between deformed shapes obtained by numerical simulation and by real experiment.
Klíčová slova anglicky
finite element modeling, constitutive equations, titanium alloys
Vydáno
2012-09-12
Místo
Košice
ISSN
1335-1532
Časopis
Acta Metallurgica Slovaca
Ročník
2012
Číslo
3
Strany od–do
125–132
Počet stran
8
BIBTEX
@article{BUT96739,
author="Miroslav {Šlais} and Ivo {Dohnal} and Milan {Forejt}",
title="Determination of Johnson-Cook equation parameters",
journal="Acta Metallurgica Slovaca",
year="2012",
volume="2012",
number="3",
pages="125--132",
issn="1335-1532"
}