Effects of fretting wear on rolling contact fatigue life of M50 bearing steel

Warhadpande, Anurag; Leonard, Benjamin D.; Sadeghi, Farshid

doi:10.1243/13506501jet309

Cited by 14 publications

(15 citation statements)

References 6 publications

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“…The resulting fretting scar will be similar to the Fig. 16 Effect of different number of fretting cycles on RCF life of M50 bearing steel [39] cross-sectional view of Fig. 15(b), with a central stick region (corresponding to the stick zone) and a peripheral worn-out region (corresponding to the slip zone).…”

Section: Experimental Studymentioning

confidence: 65%

“…Also, severely fretted surfaces are likely to contain microcracks, which will lead to the formation of areas of Table 5. A detailed description of the test rig and the experimental procedure can be found in the article by Warhadpande et al [39]. Figure 16 shows the comparison of the fatigue lives of fretted M50 rods against virgin (i.e.…”

Section: Experimental Studymentioning

confidence: 99%

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Effects of surface defects on rolling contact fatigue of heavily loaded lubricated contacts

Warhadpande

Sadeghi

2010

Proceedings of the Institution of Mechanical Engineers, Part J:

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Surface-initiated fatigue caused by surface defects is one of the most dominant failure modes for bearing contacts. In this study, a damage mechanics-based Voronoi finite-element model (VFEM) is developed and used to investigate the effects of surface defects (such as dents and fretting wear) in elastohydrodynamic lubricated line contacts. A line contact elastohydrodynamic lubricated model is used to calculate the pressure distributions acting over the surface defects, which are then employed by Voronoi finite-element model to determine subsurface stresses. Continuum damage mechanics-based approach is used to incorporate cyclic damage accumulation and progressive degradation of material properties with rolling contact cycling. The model also takes into account the effects of residual stresses generated during the debris denting process. Using this methodology, the model is used to simulate microcrack initiation, coalescence, and propagation stages, finally a fatigue spall. The locations and patterns of dentinitiated spalls are found to be consistent with experimental observations. The fatigue model is used to study the effects of the topology of the material microstructure, dent sharpness, and material properties on rolling contact fatigue (RCF) life and Weibull slopes.

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Section: Experimental Studymentioning

confidence: 65%

Section: Experimental Studymentioning

confidence: 99%

Effects of surface defects on rolling contact fatigue of heavily loaded lubricated contacts

Warhadpande

Sadeghi

2010

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Crack propagation occurs when harder asperities cause softer asperities to adhere. These effects generate further wear debris that will accumulate to span the gap between surfaces at which point abrasion wear starts and the wear zone spreads laterally (Warhadpande et al, 2008).…”

Section: The Nature Of Frettingmentioning

confidence: 99%

Vibration‐ and acoustic‐emissions based novelty detection of fretted bearings

McBain

Lakanen

Timusk

2013

Journal of Quality in Maintenance Engineering

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Purpose -The purpose of this paper is to examine the use of a new feature reduction technique with novelty detection on vibration and acoustic-emission sensors monitoring bearings mounted in the test benches of automotive manufacturers. Design/methodology/approach -Signals from standard accelerometers and acoustic-emission sensors were gathered from bearings operating under steady conditions on an accessory-drive test bench. The bearings under test were subject to a variety of faults including fretting. These signals were processed and reduced to standard feature vectors, the dimensionality of which was reduced using a new principal-component-like technique optimized for novelty detection. The reduced data were analyzed with a novelty detection technique called the Support Vector Data Descriptor. Findings -The classification results from these sensors, after being reduced with the proposed feature reduction technique, are substantially improved over those achievable with only standard novelty detection; nearly zero-percent classification error was achieved.Research limitations/implications -The feature reduction technique depends, in part, on the availability of the fault type in question -potentially violating the normal novelty detection assumption of limited abnormal data. This may require the manufacturer to gather real or simulated fault data prior to running tests. Practical implications -Incipient faults may be detectable at a much earlier stage in a manufacturer's component failure analysis. Test engineers may use this technique to reliably automate the fault detection process and enable improved root-cause analysis through the earlier identification of faults. Originality/value -The application of the feature reduction technique will provide manufacturers and researchers with a new means of improving fault detection in machinery components.

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“…Following the study with initial fretting cycles, fretting wear and fatigue are studied experimentally [10][11][12]. They study crossed-cylinders and ball-on-flat contacts but not the cylindrical line contact.…”

Section: Introductionmentioning

confidence: 99%

“…Both coatings are found to be effective to reduce wear. Warhadpande et al [12] study the effect of fretting wear on the contact fatigue life of M50 bearing steel. The results show that under a normal load, an elastic-plastic fretting scar can reduce the fatigue life by 30 percent.…”

Section: Introductionmentioning

confidence: 99%

An Elastoplastic Finite Element Study of Displacement-Controlled Fretting in a Plane-Strain Cylindrical Contact

Yang

Green

2018

Journal of Tribology

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This work presents a finite element study of a two-dimensional (2D) plane strain fretting model of a half cylinder in contact with a flat block under oscillatory tangential loading. The two bodies are deformable and are set to the same material properties (specifically steel), however, because the results are normalized, they can characterize a range of contact scales (micro to macro), and are applicable for ductile material pairs that behave in an elastic-perfectly plastic manner. Different coefficients of friction (COFs) are used in the interface. This work finds that the edges of the contacting areas experience large von Mises stresses along with significant residual plastic strains, while pileup could also appear there when the COFs are sufficiently large. In addition, junction growth is investigated, showing a magnitude that increases with the COF, while the rate of growth stabilization decreases with the COF. The fretting loop (caused by the tangential force during the fretting motion) for the initial few cycles of loading is generated, and it compares well with reported experimental results. The effects of boundary conditions are also discussed where a prestressed compressed block is found to improve (i.e., reduce) the magnitude of the plastic strain compared to an unstressed block.

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Effects of fretting wear on rolling contact fatigue life of M50 bearing steel

Cited by 14 publications

References 6 publications

Effects of surface defects on rolling contact fatigue of heavily loaded lubricated contacts

Effects of surface defects on rolling contact fatigue of heavily loaded lubricated contacts

Vibration‐ and acoustic‐emissions based novelty detection of fretted bearings

An Elastoplastic Finite Element Study of Displacement-Controlled Fretting in a Plane-Strain Cylindrical Contact

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