Effects of crystal elasticity on rolling contact fatigue

Paulson, Neil; Bomidi, John A. R.; Sadeghi, Farshid; Evans, Ryan D.

doi:10.1016/j.ijfatigue.2013.12.005

Cited by 43 publications

(22 citation statements)

References 31 publications

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“…This study shows for example a decrease in the number of cycles to micro-cracks nucleation of two magnitude orders for a simple rough contact with and without a slide-to-roll ratio. It confirms RYCERZ's conclusions in [8].…”

Section: Discussionsupporting

confidence: 89%

“…The difference highlighted by RYCERZ in [8] which consists of a shorter fatigue life for contacts subjected to negative slide-to-roll ratios rather than positive ones is also observed here on a small scale. However, this phenomenon is actually described in the literature [33,34] as part of the micro-crack propagation instead of their initiation.…”

Section: Discussionsupporting

confidence: 70%

“…Once again, the way the tangential component is computed is similar for a rough contact to the smooth one. Equation (8) shows the formulation used. The ISS curves obtained for #4 and their number of cycles to fatigue initiation are presented in Figure 10.…”

Section: Friction In a Rough Contactmentioning

confidence: 99%

“…They result from the passage of the successive roughness peaks over the initiated GB. This change in the ISS shape will influence directly the fatigue criterion and should be taken into account for its estimation as RYCERZ suggested in [8]. Thus, the way DT is calculated is modified in order to take into account all the damaging phenomena in the material.…”

Section: Influence Of Sliding In a Rough Contactmentioning

confidence: 99%

“…Regarding the material, SADEGHI's working team focuses on the granular description of some specific bearing or gear steels in [8][9][10]. The austenitic grain boundaries from typical bearing or gear steels are represented.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

From Hertzian contact to spur gears: analyses of stresses and rolling contact fatigue

Vouaillat¹,

Noyel²,

Ville³

et al. 2019

Mechanics & Industry

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The study of rolling contact fatigue in spur gears requires a good comprehension of all the phenomena occurring at the material scale. On a numerical point of view, a realistic representation of the material and of the load repartition function of the local micro-geometries is needed. However the resulting models are often complex and time-consuming. So, this work aims at developing a model meeting these specificities. Thus, different sections of the spur gear material granular geometry are simulated first. Secondly, the contact pressure fields are computed accurately relatively to the simulated surface microgeometry. Then, the influence of several parameters on their rolling contact fatigue life is highlighted. Among friction, sliding coefficient, load variation and roughness, these individual or combined parameters are taken into account in the model, tested and their impact stressed out. Finally, a fatigue criteria based on rolling contact fatigue micro-cracks nucleation at grain boundaries is proposed in order to compare simulations and influencing parameters to the reference.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 70%

Section: Friction In a Rough Contactmentioning

confidence: 99%

Section: Influence Of Sliding In a Rough Contactmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

From Hertzian contact to spur gears: analyses of stresses and rolling contact fatigue

Vouaillat¹,

Noyel²,

Ville³

et al. 2019

Mechanics & Industry

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show abstract

Crystal elasticity analysis of contact fatigue behavior of a wind turbine gear

et al. 2019

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Local grid refinement in multigrid method for point contact problems of polycrystalline anisotropic material under dry and lubricated conditions

Zhang

Vlogman

Andric³

et al. 2022

Friction

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Predicting rolling bearing fatigue life requires knowledge of the three-dimensional (3D) stress fields in the roller and raceway near the lubricated contact. Owing to the increasingly severe operating conditions, the effect of localized features such as surface roughness, subsurface inclusions, and even the crystallographic structure of the material becomes important. Achieving such detail requires (locally) extremely dense gridding in simulations, which in 3D is a major challenge. Multigrid techniques have been demonstrated to be capable of solving such problems. In this study, multigrid techniques are shown to further increase the efficiency of the solution by exploiting local grid refinement while maintaining the simplicity of a uniform discretization. This is achieved by employing increasingly finer grids only locally, where the highest resolution is required. Results are presented for dry contact and elastohydrodynamically lubricated contact cases, circular as well as elliptic, with varying crystallographic structure, and with surface roughness. The results show that the developed algorithm is very well suited for detailed analysis, with also excellent prospects for computational diagnostics involving actual material crystallographic structure from electron backscatter diffraction measurements.

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Effects of crystal elasticity on rolling contact fatigue

Cited by 43 publications

References 31 publications

From Hertzian contact to spur gears: analyses of stresses and rolling contact fatigue

From Hertzian contact to spur gears: analyses of stresses and rolling contact fatigue

Crystal elasticity analysis of contact fatigue behavior of a wind turbine gear

Local grid refinement in multigrid method for point contact problems of polycrystalline anisotropic material under dry and lubricated conditions

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