Proceedings Vol. 27/28 (2022)
ENGINEERING MECHANICS 2022
May 9 – 12, 2022, Milovy, Czech Republic
Copyright © 2022 Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, Prague
ISBN 978-80-86246-51-2 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 393 - 396, full text
Experimental measurements focused on the evolution of yield surfaces during strain hardening are crucial for the development and validation of phenomenological models of directional distortional hardening. This paper presents a method for yield surface tracing using axial-torsional universal testing machine Instron 8852 controlled by in-house software developed in visual graphical environment Labview 2019. Four yield surfaces were traced on a single specimen to which different level of prestrain were applied. Each yield surface was traced with four repetitions. Obtained data shows high level consistency across repetitions a exhibits characteristic features of directional distortional hardening. Small deviation of initial yield surface from the von Mises model was observed.
back to list of papers
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.