Engineering Mechanics

International Conference

Proceedings Vol. 24 (2018)


ENGINEERING MECHANICS 2018

24th INTERNATIONAL CONFERENCE
May 14 – 17, 2018, Svratka, Czech Republic
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Editors: Cyril Fischer and Jiří Náprstek

Copyright © 2018 Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague

ISBN 978-80-86246-88-8 (printed)
ISBN 978-80-86246-91-8 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Fatigue life calculations of machine components in approach of stress, strain and energy
Ligaj B., Karolewska K.
pages 501 - 504, full text

The paper presents the experimental verification of fatigue life calculation in the conditions of programmable loads. In order to assess of accuracy of the calculations, the experimental research of the C45 steel were carried out under static load condition (R = -1), and under programmable loads. The research was realized under stress control condition. On the basis of obtained results, the fatigue life diagram in approach of stress (Sa-N), strain (eac-2Nf) and energy were (DWpl-N). A comparative analysis of calculation results with the results of experimental tests for two step loadings revealed a significant influence of the maximal stress values in the spectrum on fatigue life, for each of the applied calculation methods.


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