Publication result detail

Determination of Johnson-Cook equation parameters

ŠLAIS, M.; DOHNAL, I.; FOREJT, M.

Original Title

Determination of Johnson-Cook equation parameters

English Title

Determination of Johnson-Cook equation parameters

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

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.

English abstract

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.

Keywords

finite element modeling, constitutive equations, titanium alloys

Key words in English

finite element modeling, constitutive equations, titanium alloys

Authors

ŠLAIS, M.; DOHNAL, I.; FOREJT, M.

RIV year

2013

Released

12.09.2012

Location

Košice

ISBN

1335-1532

Periodical

Acta Metallurgica Slovaca

Volume

2012

Number

3

State

Slovak Republic

Pages from

125

Pages to

132

Pages count

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"
}