Fundamentals of Design and Technology of Rolling Element Bearings

Ebert, Franz-Josef

doi:10.1016/s1000-9361(09)60196-5

Cited by 52 publications

(28 citation statements)

References 2 publications

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“…Once cracks are generated, they can propagate, becoming macroscopic, or arrest to the microscopic scale. Most of the propagation phase usually occurs along a path parallel to the contact surface, as many evidences show, until cracks deviate towards the surface causing material removal and final failure 1,4,5,10–13 . As several studies show, 5,14–16 this phase of propagation occurs in mode II, given the triaxial compressive stress state (in particular the component parallel to the crack path), that inhibits crack opening displacements (CODs), crack kinking and mode I propagation.…”

Section: Introductionmentioning

confidence: 99%

“…Subsurface crack nucleation and propagation is one of the damage phenomena occurring in components subjected to rolling contact: it is responsible of severe damage such as shelling, spalling and case crushing, especially in hard materials such as those used for bearings or cams. [1][2][3][4][5] This phenomenon has been studied initially by a phenomenological and statistical approach, leading to the well-known Lundberg-Palmgren model for contact fatigue strength. More recently, deeper approaches have put into evidence the role of microstructure defects such as voids, inclusions, dents, etc.…”

Section: Introductionmentioning

confidence: 99%

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A numerical approach to subsurface crack propagation assessment in rolling contact

Mazzù

2013

Fatigue Fract Eng Mat Struct

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Subsurface crack mode II propagation parallel to the contact surface is a damage mechanism leading to dramatic failure in many components subjected to cyclic loading. A weight function (WF) was elaborated for calculating the applied mode II stress intensity factor (SIF) of a crack in a two‐dimensional half‐space in plane strain condition, for crack completely closed and frictionless contact between the crack faces. With respect to other methods, the WF allows faster SIF calculation, thus being suitable for simulation of many repeated load cycles and fatigue crack propagation. The WF was applied for simulating a case of rolling contact experiments found in the literature, and good agreement between experimental and numerical results was obtained, showing the effectiveness of the WF method in damage tolerant design.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A numerical approach to subsurface crack propagation assessment in rolling contact

Mazzù

2013

Fatigue Fract Eng Mat Struct

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“…Jácome et al [2] and Yongqi et al [3] have studied the stress and strain distribution by FEA (finite element analysis) with commercial codes. Rolling contact fatigue and the importance of lubrification have been shown by Ebert [4] and Balcombe et al [5]. Yamashita et al [6] have done an analysis of the elastohydrodymanic fluid film thickness in TRB (tapered roller bearings), and Venner et al [7] showed the film thickness decay in elastohydrodynamically lubricated contacts.…”

Section: Introduction mentioning

confidence: 98%

Influence of the Number of Rollers on a Tapered Roller Bearing

Scari¹,

Magalhães²

2014

JMEA

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Abstract:In roller bearings, the outer ring is usually fixed and the inner ring has the rolling motion. Concerning TRB (tapered roller bearings), this motion generates forces that are transmitted to the outer ring by the tapered rollers. Thus, contact stresses occur and the number of rollers plays a major role with respect to the load distribution. This influence is analyzed in this study by the FEM (finite element method) with commercial code ABAQUS, where two models were evaluated: a common TRB and the same one but with fewer rollers. As an application, a manual automotive transmission was considered for the input loads.

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“…Today, the key elements, such as bearings and gears, are under great pressure to meet the legislative demands of long life and high operational speeds [1][2][3]. These challenges can be achieved by employing high hardness, anti-corrosion, and wear-resistant brittle coatings, such as metal nitride coatings, metal oxide coatings, diamond-like carbon (DLC), etc., to protect working surfaces, as well as adopting high strength steel [4,5].…”

Section: Introductionmentioning

confidence: 99%

Interfacial Mechanics Analysis of a Brittle Coating–Ductile Substrate System Involved in Thermoelastic Contact

Zhang¹,

Li²,

Nie³

et al. 2017

Coatings

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Abstract:In this paper, interfacial stress analysis for a brittle coating/ductile substrate system, which is involved in a sliding contact with a rigid ball, is presented. By combining interface mechanics theory and the image point method, stress and displacement responses within a coated material for normal load, tangential load, and thermal load are obtained; further, the Green's functions are established. The effects of coating thickness, friction coefficient, and a coating's thermoelastic properties on the interfacial shear stress, τ xz , and transverse stress, σ xx , distributions are discussed in detail. A phenomenon, where interfacial shear stress tends to be relieved by frictional heating, is found in the case of a coating material's thermal expansion coefficient being less than a substrate material's thermal expansion coefficient. Additionally, numerical results show that distribution of interfacial stress can be altered and, therefore, interfacial damage can be modified by adjusting a coating's structural parameters and thermoelastic properties.

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Fundamentals of Design and Technology of Rolling Element Bearings

Cited by 52 publications

References 2 publications

A numerical approach to subsurface crack propagation assessment in rolling contact

A numerical approach to subsurface crack propagation assessment in rolling contact

Influence of the Number of Rollers on a Tapered Roller Bearing

Interfacial Mechanics Analysis of a Brittle Coating–Ductile Substrate System Involved in Thermoelastic Contact

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