Engineering Mechanics

International Conference

Proceedings Vol. 27/28 (2022)


May 9 – 12, 2022, Milovy, Czech Republic
Editors: Cyril Fischer and Jiří Náprstek

Copyright © 2022 Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, Prague

ISBN 978-80-86246-48-2 (printed)
ISBN 978-80-86246-51-2 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Investigation of Johnson-Cook parameters of aluminium alloy 2024-T3
Harant M., Jopek M., Podaný K., Řiháček J.
pages 137 - 140, full text

In this paper the constitutive modeling of mechanical behaviour of aluminium alloy 2024-T3 is presented. This material is often used in automotive, aircraft or aerospace industry. Therefore, to understand the effect of temperature and strain rate on the material properties is crucial. Series of dynamic tests at various strain rates were performed using the Split Hopkinson Pressure Bar. The stress-strain curves have shown moderate strain rate dependence of flow stress. The temperature effect was evaluated using quasi-static compression tests at different temperatures. In this case, the significant thermal softening is observed. Based on these experiments, parameters of the Johnson-Cook material model were determined. A comparative analysis of the numerical simulations and experiments showed a moderate difference between results.

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Ownership of copyright in original research articles remains with the Authors, and provided that, when reproducing parts of the contribution, the Authors acknowledge and/or reference the Proceedings, the Authors do not need to seek permission for re-use of their material.

All papers were reviewed by members of the scientific committee.

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