A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration
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 un...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
2017-01-01
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| Series: | Tehnički Vjesnik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/267091 |
| _version_ | 1827283100669837312 |
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| author | Radim Halama Michal Šofer Jaroslav Rojíček František Fojtík Kamil Kolařík |
| author_facet | Radim Halama Michal Šofer Jaroslav Rojíček František Fojtík Kamil Kolařík |
| author_sort | Radim Halama |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-24T09:30:07Z |
| format | Article |
| id | doaj.art-a163170beb05471295ccec883c693f69 |
| institution | Directory Open Access Journal |
| issn | 1330-3651 1848-6339 |
| language | English |
| last_indexed | 2024-04-24T09:30:07Z |
| publishDate | 2017-01-01 |
| publisher | Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek |
| record_format | Article |
| series | Tehnički Vjesnik |
| spelling | doaj.art-a163170beb05471295ccec883c693f692024-04-15T14:10:48ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392017-01-0124Supplement 171410.17559/TV-20140224213525A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into considerationRadim Halama0Michal Šofer1Jaroslav Rojíček2František Fojtík3Kamil Kolařík4VSB-TU Ostrava, 17. listopadu 15/2127, 70833 Ostrava-Poruba, Czech RepublicVSB-TU Ostrava, 17. listopadu 15/2127, 70833 Ostrava-Poruba, Czech RepublicVSB-TU Ostrava, 17. listopadu 15/2127, 70833 Ostrava-Poruba, Czech RepublicVSB-TU Ostrava, 17. listopadu 15/2127, 70833 Ostrava-Poruba, Czech RepublicCTUin Prague, Trojanova 13, 120 00 Prague 2, Czech RepublicThe 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.https://hrcak.srce.hr/file/267091ratchetingresidual stressrolling contact fatiguewear |
| spellingShingle | Radim Halama Michal Šofer Jaroslav Rojíček František Fojtík Kamil Kolařík A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration Tehnički Vjesnik ratcheting residual stress rolling contact fatigue wear |
| title | A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration |
| title_full | A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration |
| title_fullStr | A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration |
| title_full_unstemmed | A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration |
| title_short | A method for predicting ratcheting and wear in rolling contact fatigue, taking technological residual stresses into consideration |
| title_sort | method for predicting ratcheting and wear in rolling contact fatigue taking technological residual stresses into consideration |
| topic | ratcheting residual stress rolling contact fatigue wear |
| url | https://hrcak.srce.hr/file/267091 |
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