Detail výsledku – FaVU VUT

Originální název

THE INFLUENCE OFTHE STRAIN RATE ON THE VALUE OF FRICTION COEFFICIENT

Anglický název

THE INFLUENCE OFTHE STRAIN RATE ON THE VALUE OF FRICTION COEFFICIENT

Druh

Článek WoS

Originální abstrakt

The Male and Cockroft ring compression test stands as one of the methods utilized to determine the coefficient of friction in forming processes. This approach eliminates the need for force measurement. This study presents the outcomes of the Male and Cockroft ring compression test conducted on Hardox 450 material at varying strain rates, conducted without lubricant. The experiments were carried out using a ZD-40 hydraulic press, CFA-80 pneumatic die hammer and split Hopkinson pressure bar test at the Faculty of Mechanical Engineering of Brno University of Technology. The test results were documented on a calibration diagram, revealing a significant influence of strain rate on the coefficient of friction. Specifically, the findings indicate that as the strain rate increases, the coefficient of friction decreases.

Anglický abstrakt

The Male and Cockroft ring compression test stands as one of the methods utilized to determine the coefficient of friction in forming processes. This approach eliminates the need for force measurement. This study presents the outcomes of the Male and Cockroft ring compression test conducted on Hardox 450 material at varying strain rates, conducted without lubricant. The experiments were carried out using a ZD-40 hydraulic press, CFA-80 pneumatic die hammer and split Hopkinson pressure bar test at the Faculty of Mechanical Engineering of Brno University of Technology. The test results were documented on a calibration diagram, revealing a significant influence of strain rate on the coefficient of friction. Specifically, the findings indicate that as the strain rate increases, the coefficient of friction decreases.

Klíčová slova

strain rate; friction; ring compression test; Hardox 450 steel; split Hopkinson pressure bar test

Klíčová slova v angličtině

strain rate; friction; ring compression test; Hardox 450 steel; split Hopkinson pressure bar test

Autoři

SVOBODA, P.; JOPEK, M.

Rok RIV

2025

Vydáno

11.12.2024

Nakladatel

MM SCIENCE

Místo

PRAGUE 10

ISSN

1805-0476

Periodikum

MM Science Journal

Svazek

2024

Číslo

5

Stát

Česká republika

Strany od

7824

Strany do

7828

Strany počet

5

URL

https://www.mmscience.eu/journal/issues/december-2024/articles/the-influence-of-the-strain-rate-on-the-value-of-friction-coefficient

BibTex

@article{BUT191350,
  author="Petr {Svoboda} and Miroslav {Jopek}",
  title="THE INFLUENCE OFTHE STRAIN RATE ON THE VALUE OF FRICTION COEFFICIENT",
  journal="MM Science Journal",
  year="2024",
  volume="2024",
  number="5",
  pages="7824--7828",
  doi="10.17973/MMSJ.2024\{_}12\{_}2024031",
  issn="1803-1269",
  url="https://www.mmscience.eu/journal/issues/december-2024/articles/the-influence-of-the-strain-rate-on-the-value-of-friction-coefficient"
}