A probabilistic fatigue model based on nonlinear Kohout-Věchet function: Application to 42CrMo4+QT steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00372277" target="_blank" >RIV/68407700:21220/24:00372277 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1742-6596/2692/1/012032" target="_blank" >https://doi.org/10.1088/1742-6596/2692/1/012032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/2692/1/012032" target="_blank" >10.1088/1742-6596/2692/1/012032</a>

Result language
angličtina
Original language name
A probabilistic fatigue model based on nonlinear Kohout-Věchet function: Application to 42CrMo4+QT steel
Original language description
This paper presents a fatigue model designed to provide probabilistic-stress-life (P-S-N) curves at any probability level. Grounded in the Weibull probabilistic model’s framework, the model describes two scenarios: P-Case A, which considers deviations in stress, and P-Case B, centered on deviations in cycles to failure from the median S-N curve. A significant aspect of the proposed model is the incorporation of the Kohout-Věchet function as the representative median S-N curve, allowing for the Kohout-Vechet P-S-N curves across any probability level. To demonstrate the model’s practical relevance, an experimental example focused on specimens made from 42CrMo4+QT steel and subjected to push-pull loading is explored. Not only do the results show the robustness of the model but they also emphasize the role of the characteristic P-S-N curves, especially at lower probability level, in assuring the safety of engineering components.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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