<abstract xmlns="http://www.w3.org/1999/xhtml">

Progressive, high-strength materials have an important position in the transport industry. In this industry, components are subject to high safety and reliability requirements because they often operate under long-term cyclic stress regimes. The paper presents results of fatigue resistance of high-strength materials such DOMEX 700MC, HARDOX 400, HARDOX 450, and INCONEL 718 (UTS from 850 to 1560 MPa) measured at high-frequency cyclic loading (f = 20 kHz, T = 20 ± 5 ° C, push-pull loading, cycle asymmetry parameter of R = -1) in the area from N = 2x106 to N = 2x108 cycles. Fatigue resistance showed a continuous decrease about average value Sa 2x108/Sa 2x106 = 19.1%.
</abstract>

Progressive, high-strength materials have an important position in the transport industry. In this industry, components are subject to high safety and reliability requirements because they often operate under long-term cyclic stress regimes. The paper presents results of fatigue resistance of high-strength materials such DOMEX 700MC, HARDOX 400, HARDOX 450, and INCONEL 718 (UTS from 850 to 1560 MPa) measured at high-frequency cyclic loading (f = 20 kHz, T = 20 ± 5 ° C, push-pull loading, cycle asymmetry parameter of R = -1) in the area from N = 2x106 to N = 2x108 cycles. Fatigue resistance showed a continuous decrease about average value Sa 2x108/Sa 2x106 = 19.1%.

Safety of Construction Components in a Very High Number of Load Cycles

System Safety: Human - Technical Facility - Environment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Safety of Construction Components in a Very High Number of Load Cycles"}

Progressive, high-strength materials have an important position in the transport industry. In this industry, components are subject to high safety and...

Safety of Construction Components in a Very High Number of Load Cycles

Published Online: Apr 18, 2020

Page range: 199 - 206

Received: Nov 13, 2019

Accepted: Feb 03, 2020

DOI: https://doi.org/10.2478/czoto-2020-0024

Keywords
high-strength materials, fatigue resistance, push-pull loading, high-frequency, S – N curves

© 2020 František Nový et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Safety of Construction Components in a Very High Number of Load Cycles

Published Online: Apr 18, 2020

Page range: 199 - 206

Received: Nov 13, 2019

Accepted: Feb 03, 2020

DOI: https://doi.org/10.2478/czoto-2020-0024

Keywordshigh-strength materials, fatigue resistance, push-pull loading, high-frequency, S – N curves

© 2020 František Nový et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
high-strength materials, fatigue resistance, push-pull loading, high-frequency, S – N curves