Finite element analysis of stress singularity in partial slip and gross sliding regimes in fretting wear

Yue, Tongyan; Wahab, Magd Abdel

doi:10.1016/j.wear.2014.09.008

Cited by 84 publications

(32 citation statements)

References 28 publications

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“…The macro model used in this study is similar to the one proposed by Yue and Wahab [18] based on McColl et al [19]. The contact configuration with dimensions is shown in Figure 8, where the normal load F and the tangential reciprocated displacement with amplitude D are imposed at the midpoint of the top surface.…”

Section: Macro Model: Fretting Wear Predictionmentioning

confidence: 99%

“…Besides investigating fretting damage by experiments, Finite Element Method (FEM) is also widely used in this field in partial slip [11][12][13][14][15][16][17] and gross sliding [18] regimes. The first FEM of fretting wear presented in 2004 [19].…”

mentioning

confidence: 99%

“…The advantage of FEM is that it can describe the local contact information and fretting damage during the fretting wear process, which is difficult to achieve by experiment. However, most of the models that are used to predict fretting wear do not consider the effect of roughness [18][19][20] due to the small size of asperities and its statistical distribution leading to high computational demanding. Though the semi-analytical model proposed by Kasarekar et al [21] and the discrete element approach study done by Leonard et al [22] simulated the effects of roughness on fretting wear, both of them only neglected the random nature of the rough surfaces, analysing only one roughness profile per case.…”

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confidence: 99%

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Multiscale analysis of the effect of roughness on fretting wear

Pereira

Yue

Wahab

2017

Tribology International

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Cite this article as: K. Pereira, T. Yue and M. Abdel Wahab, Multiscale analysis of the effect of roughness on fretting wear, Tribiology International, http://dx.doi.org/10. 1016/j.triboint.2017.02.024 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Abstract: Fretting occurs when two loaded contacting surfaces are exposed to oscillatory relative movement of small amplitude. Depending on conditions such as surface finishing, coefficient of friction, normal load and slip amplitude, fretting may reduce the service life of a component by fretting wear. The effect of surface roughness on the fretting wear profile is still uncertain and may be significant. However, most of the finite element (FE) models that are used to predict fretting wear do not take it into consideration. In this paper, we propose a multiscale procedure to study roughness effect on fretting wear using FE models. In order to do that, we treat the problem in two scales: a) micro scale to analyse the effect of roughness on the contact pressure for frictionless conditions, and b) macro scale to estimate the wear profile evolution for a cylinder on plane contact configuration.

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Section: Macro Model: Fretting Wear Predictionmentioning

confidence: 99%

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confidence: 99%

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Multiscale analysis of the effect of roughness on fretting wear

Pereira

Yue

Wahab

2017

Tribology International

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“…Snowflakes are undensified regions, in which only the grain skeleton is present and the surrounding glassy phase is missing, which may attribute to premature material failure under service. Therefore, understanding damage mechanisms under various tribological loading becomes inevitable [9][10][11][12][13][14][15]. The distinctiveness in this work arises from the combination of experimental (rolling and cyclic) work and numerical simulations, which enabled studying crack initiation and propagation in GPSN.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of crack initiation and propagation in silicon nitride ceramic under rolling and cyclic contact

Raga

Khader

Chlup

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. The focus of the work was to investigate crack initiation and propagation mechanisms in silicon nitride undergoing non-conforming hybrid contact under various tribological conditions. In order to understand the prevailing modes of damage in silicon nitride, two distinct model experiments were proposed, namely, rolling contact and cyclic contact experiments. The rolling contact experiment was designed in order to mimic the contact conditions appearing in hybrid bearings at contact pressures ranging from 3 to 6 GPa. On the other hand, cyclic contact experiments with stresses ranging from 4 to 15 GPa under different media were carried out to study damage under localised stresses. In addition, the experimentally observed cracks were implemented in a finite element model to study the stress redistribution and correlate the generated stresses with the corresponding mechanisms. Crack propagation under rolling contact was attributed to two different mechanisms, namely, fatigue induced fracture and lubricant driven crack propagation. The numerical simulations shed light on the tensile stress driven surface and subsurface crack propagation mechanisms. On the other hand, the cyclic contact experiments showed delayed crack formation for lubricated cyclic contact. Ceramographic cross-sectional analysis showed crack patterns similar to Hertzian crack propagation under cyclic contact load.

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“…Total is over, traffic accidents, casualties and property losses were caused by the grim situation. So the car running safety has attracted more and more attention [7] [8]. As one of the important parts of the car, car seat plays the role of supporting the driver in place, which ensures that its good field of vision and the performance of vehicle stability control at the same time reduce or avoid the hurt of the driver and crew in accident damage [9].…”

Section: Introductionmentioning

confidence: 99%