Publication detail

Determining Johnson-Cook Constitutive Equation for Low-Carbon Steel via Taylor Anvil Test

KUNČICKÁ, L. JOPEK, M. KOCICH, R. DVOŘÁK, K.

Original Title

Determining Johnson-Cook Constitutive Equation for Low-Carbon Steel via Taylor Anvil Test

Type

journal article in Web of Science

Language

English

Original Abstract

Tristal steel is low-carbon construction-type steel widely used in the automotive industry, e.g., for braking components. Given the contemporary demands on the high-volume production of such components, these are typically fabricated using automatic sequential machines, which can produce components at strain rates up to 103 s−1. For this reason, characterising the behaviour of the used material at high strain rates is of the utmost importance for successful industrial production. This study focuses on the characterisation of the behaviour of low-carbon steel via developing its material model using the Johnson-Cook constitutive equation. At first, the Taylor anvil test is performed. Subsequently, the acquired data together with the results of observations of structures and properties of the tested specimens are used to fill the necessary parameters into the equation. Finally, the developed equation is used to numerically simulate the Taylor anvil test and the predicted data is correlated with the experimentally acquired one. The results showed a satisfactory correlation of the experimental and predicted data; the deformed specimen region featured increased occurrence of dislocations, as well as higher hardness (its original value of 88 HV increased to more than 200 HV after testing), which corresponded to the predicted distributions of effective imposed strain and compressive stress.

Keywords

low-carbon steel; Taylor anvil test; Johnson–Cook; constitutive equation; high strain rate;

Authors

KUNČICKÁ, L.; JOPEK, M.; KOCICH, R.; DVOŘÁK, K.

Released

25. 8. 2021

Publisher

MDPI

Location

Švýcarsko

ISBN

1996-1944

Periodical

Materials

Year of study

14

Number

17

State

Swiss Confederation

Pages from

1

Pages to

15

Pages count

15

URL

https://www.mdpi.com/1996-1944/14/17/4821

Full text in the Digital Library

http://hdl.handle.net/11012/201477

BibTex

@article{BUT172308,
  author="Lenka {Kunčická} and Miroslav {Jopek} and Radim {Kocich} and Karel {Dvořák}",
  title="Determining Johnson-Cook Constitutive Equation for Low-Carbon Steel via Taylor Anvil Test",
  journal="Materials",
  year="2021",
  volume="14",
  number="17",
  pages="1--15",
  doi="10.3390/ma14174821",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/14/17/4821"
}