Equivalent configurations for notch and fretting fatigue
Under the typical partial slip conditions under which fretting fatigue takes place, the amount of superficial damage is small. Therefore, the substantial reduction in fatigue life caused by fretting, when compared to plain fatigue, may well be more associated with the stress concentration and the...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2015-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_47.pdf |
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| _version_ | 1841564215294296064 |
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| author | J. A. Araújo F. C. Castro S. Pommier J. Bellecave J. Mériaux |
| author_facet | J. A. Araújo F. C. Castro S. Pommier J. Bellecave J. Mériaux |
| author_sort | J. A. Araújo |
| collection | DOAJ |
| description | Under the typical partial slip conditions under which fretting fatigue takes place, the amount of
superficial damage is small. Therefore, the substantial reduction in fatigue life caused by fretting, when
compared to plain fatigue, may well be more associated with the stress concentration and the stress gradient
phenomena generated by the contact problem than to the superficial loss of material. In this setting, notch
stress-based methodologies could, in principle, be applied to fretting in the medium/high cycle fatigue regime.
The aim of this work was to investigate whether it is possible to design fretting and notch fatigue
configurations, which are nominally identical in terms of damage measured by a multiaxial fatigue model. The
methodology adopted to carry out this search considered a cylindrical on flat contact and a V-notch. Load and
geometry dimensions of both configurations were adjusted in order to try to obtain the “same” decay of the
Multiaxial Fatigue Index from the hot spot up to a critical distance. Positive results of such simulations can lead
us to design an experimental program that can bring more firm conclusions on the use of pure stress-based
approaches, which do not include the wear damage, in the modeling of fretting fatigue. |
| format | Article |
| id | doaj-art-fbed20fa8e6b4019984f9b27a89f9321 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2015-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-fbed20fa8e6b4019984f9b27a89f93212025-01-02T23:02:19ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932015-07-0193342743310.3221/IGF-ESIS.33.47Equivalent configurations for notch and fretting fatigueJ. A. Araújo0F. C. Castro1S. Pommier2J. Bellecave3J. Mériaux4University of Brasilia,BrasileUniversity of Brasilia,BrasileUniversité Paris SaclayUniversité Paris SaclaySNECMAUnder the typical partial slip conditions under which fretting fatigue takes place, the amount of superficial damage is small. Therefore, the substantial reduction in fatigue life caused by fretting, when compared to plain fatigue, may well be more associated with the stress concentration and the stress gradient phenomena generated by the contact problem than to the superficial loss of material. In this setting, notch stress-based methodologies could, in principle, be applied to fretting in the medium/high cycle fatigue regime. The aim of this work was to investigate whether it is possible to design fretting and notch fatigue configurations, which are nominally identical in terms of damage measured by a multiaxial fatigue model. The methodology adopted to carry out this search considered a cylindrical on flat contact and a V-notch. Load and geometry dimensions of both configurations were adjusted in order to try to obtain the “same” decay of the Multiaxial Fatigue Index from the hot spot up to a critical distance. Positive results of such simulations can lead us to design an experimental program that can bring more firm conclusions on the use of pure stress-based approaches, which do not include the wear damage, in the modeling of fretting fatigue.http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_47.pdfFretting fatigueNotch fatigueStress gradientMultiaxial fatigue |
| spellingShingle | J. A. Araújo F. C. Castro S. Pommier J. Bellecave J. Mériaux Equivalent configurations for notch and fretting fatigue Fracture and Structural Integrity Fretting fatigue Notch fatigue Stress gradient Multiaxial fatigue |
| title | Equivalent configurations for notch and fretting fatigue |
| title_full | Equivalent configurations for notch and fretting fatigue |
| title_fullStr | Equivalent configurations for notch and fretting fatigue |
| title_full_unstemmed | Equivalent configurations for notch and fretting fatigue |
| title_short | Equivalent configurations for notch and fretting fatigue |
| title_sort | equivalent configurations for notch and fretting fatigue |
| topic | Fretting fatigue Notch fatigue Stress gradient Multiaxial fatigue |
| url | http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_47.pdf |
| work_keys_str_mv | AT jaaraujo equivalentconfigurationsfornotchandfrettingfatigue AT fccastro equivalentconfigurationsfornotchandfrettingfatigue AT spommier equivalentconfigurationsfornotchandfrettingfatigue AT jbellecave equivalentconfigurationsfornotchandfrettingfatigue AT jmeriaux equivalentconfigurationsfornotchandfrettingfatigue |