Application of Self-Heating Method to Estimate Fatigue Limit of 42CrMo4+QT Steel under Fretting Fatigue Conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00384166" target="_blank" >RIV/68407700:21220/25:00384166 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.prostr.2025.06.092" target="_blank" >https://doi.org/10.1016/j.prostr.2025.06.092</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2025.06.092" target="_blank" >10.1016/j.prostr.2025.06.092</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application of Self-Heating Method to Estimate Fatigue Limit of 42CrMo4+QT Steel under Fretting Fatigue Conditions

Popis výsledku v původním jazyce

This paper explores the use of the self-heating method based on thermal imaging to estimate the fatigue limit of 42CrMo4+QT steel under fretting conditions. Square test specimens were subjected to cyclic axial loading and fretting contact conditions induced by two types of pads to simulate varied contact slips and temperatures. Fatigue limits from conventional S-N curves were compared to those from the self-heating method. Although the obtained results are in relatively good agreement, a numerical correction was applied to isolate frictional heating effects due to presence of contact. The corrected self-heating curves theoretically represent the plain fatigue problem for which the self-heating method was developed. However, this additional step did not improve accuracy. The results suggest that thermal imaging data can be used directly, without correction, to evaluate the fatigue limit under fretting conditions effectively.

Název v anglickém jazyce

Application of Self-Heating Method to Estimate Fatigue Limit of 42CrMo4+QT Steel under Fretting Fatigue Conditions

Popis výsledku anglicky

This paper explores the use of the self-heating method based on thermal imaging to estimate the fatigue limit of 42CrMo4+QT steel under fretting conditions. Square test specimens were subjected to cyclic axial loading and fretting contact conditions induced by two types of pads to simulate varied contact slips and temperatures. Fatigue limits from conventional S-N curves were compared to those from the self-heating method. Although the obtained results are in relatively good agreement, a numerical correction was applied to isolate frictional heating effects due to presence of contact. The corrected self-heating curves theoretically represent the plain fatigue problem for which the self-heating method was developed. However, this additional step did not improve accuracy. The results suggest that thermal imaging data can be used directly, without correction, to evaluate the fatigue limit under fretting conditions effectively.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GF23-06130K" target="_blank" >GF23-06130K: Procedura pro odhad únavy v kontaktech: Lokální multiaxiální analýza napěťových a tribologických vlivů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Procedia structural integrity

ISBN

—

ISSN

2452-3216

e-ISSN

2452-3216

Počet stran výsledku

7

Strana od-do

527-533

Název nakladatele

Elsevier B.V.

Místo vydání

Amsterdam

Místo konání akce

Záhřeb

Datum konání akce

26. 8. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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