A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F17%3A10238024" target="_blank" >RIV/61989100:27230/17:10238024 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/17:10238024 RIV/68407700:21340/17:00316688

Výsledek na webu

<a href="https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=267091" target="_blank" >https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=267091</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17559/TV-20140224213525" target="_blank" >10.17559/TV-20140224213525</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration

Popis výsledku v původním jazyce

The main aim of our study is to show the influence of residual stresses on wear and surface ratcheting in the case of line rolling contact. Experiments were carried out on the innovated TUORS (Technical University of Ostrava Rolling Sliding testing machine) testing rig under free rolling and also under a slip ratio of 0,75 %. All specimens used for the experiments were made from R7T steel. A hole-drilling method and an X-ray diffraction method were applied to determine the residual stresses induced by repeated contact loading and technological residual stresses. Mazzu’s semi-analytical approach, which makes use of full integration of the Armstrong-Frederick model, was used to simulate ratcheting and wear. The proposed model calibration methodology, based on an inverse approach, allows the model parameters to be determined directly from the measured wear. The results of this study confirm that the observed technological compressive residual stresses lead to lower ratcheting and subsequently also to lower wear rates.

Název v anglickém jazyce

A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration

Popis výsledku anglicky

The main aim of our study is to show the influence of residual stresses on wear and surface ratcheting in the case of line rolling contact. Experiments were carried out on the innovated TUORS (Technical University of Ostrava Rolling Sliding testing machine) testing rig under free rolling and also under a slip ratio of 0,75 %. All specimens used for the experiments were made from R7T steel. A hole-drilling method and an X-ray diffraction method were applied to determine the residual stresses induced by repeated contact loading and technological residual stresses. Mazzu’s semi-analytical approach, which makes use of full integration of the Armstrong-Frederick model, was used to simulate ratcheting and wear. The proposed model calibration methodology, based on an inverse approach, allows the model parameters to be determined directly from the measured wear. The results of this study confirm that the observed technological compressive residual stresses lead to lower ratcheting and subsequently also to lower wear rates.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Tehnički vjesnik – Technical Gazette

ISSN

1330-3651

e-ISSN

—

Svazek periodika

24

Číslo periodika v rámci svazku

Supplement 1

Stát vydavatele periodika

HR - Chorvatská republika

Počet stran výsledku

8

Strana od-do

7-14

Kód UT WoS článku

000401236500002

EID výsledku v databázi Scopus

2-s2.0-85019099161