Search Results - "Sadeghi, Farshid"
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Rolling contact fatigue of case carburized steels
Published in International journal of fatigue (01-02-2017)“…•Micro-indentation tests showed that hardness follows bilinear profile for case-carburized steel.•A numerical model was developed to study effects of case…”
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2
Numerical modeling of sub-surface initiated spalling in rolling contacts
Published in Tribology international (01-03-2013)“…A 3D finite element model was developed to investigate the influence of microstructure topology on the stochastic nature of rolling contact fatigue. Grains of…”
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3
Residual stress formation and stability in bearing steels due to fatigue induced retained austenite transformation
Published in International journal of fatigue (01-07-2020)“…•Residual stress from RA transformation.•Utility of RA in fatigue.•Effect of loading. In this work, for development and sustainability of compressive residual…”
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4
MoS2 nanolayer coated carbon spheres as an oil additive for enhanced tribological performance
Published in Carbon (New York) (01-12-2016)“…Submicrometer-sized carbon spheres coated with a MoS2 nanolayer (CS-MoS2) have been synthesized and investigated as a viable oil additive to enhance the…”
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5
Effect of retained austenite – Compressive residual stresses on rolling contact fatigue life of carburized AISI 8620 steel
Published in International journal of fatigue (01-06-2015)“…•A FEM model is created to investigate effect of retained austenite and residual stresses on rolling contact fatigue (RCF).•Damage mechanics and Voronoi…”
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6
Microstructural Alterations in Bearing Steels under Rolling Contact Fatigue Part 1-Historical Overview
Published in Tribology transactions (01-05-2013)“…Microstructural alterations in bearing steels during rolling contact cycling have been reported in the literature for more than half a century. These…”
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7
Why is No One Talking About This? Addressing Intimacy and Sexual Concerns in Patients with Serious Illness (FR412)
Published in Journal of pain and symptom management (01-02-2017)“…Intimacy and sexual symptoms are a common concern in patients with advanced illness. There are medical, psychological, and social causes of these concerns. The…”
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8
A Numerical and Experimental Investigation of Fretting Wear and a New Procedure for Fretting Wear Maps
Published in Tribology transactions (01-05-2012)“…In this investigation, the fretting wear phenomenon was investigated experimentally and analytically. For the analytical investigation, a combined finite…”
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9
Flow Visualization in a Pocketed Thrust Washer
Published in Tribology transactions (01-09-2012)“…The objectives of this study were to experimentally and numerically investigate oil flow in surface-pocketed thrust washers. In order to achieve the…”
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10
The effects of lubricant starvation on ball bearing cage pocket friction
Published in Tribology international (01-09-2022)“…This paper presents an experimental and analytical investigation into the lubrication of deep groove ball bearing (DGBB) cage pockets. A custom acrylic replica…”
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11
Effects of fretting wear on rolling contact fatigue
Published in Tribology international (01-04-2024)“…In this study, a three-dimensional (3D) continuum damage mechanics (CDM) finite element (FE) model was developed to investigate the effects of fretting wear on…”
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12
A continuum damage mechanics framework for modeling the effect of crystalline anisotropy on rolling contact fatigue
Published in Tribology international (01-12-2019)“…Rolling contact fatigue (RCF) is the primary mode of fatigue failure in well-lubricated rolling element bearings. Typical fatigue failures in bearings are…”
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13
Fundamental relationship between rolling contact fatigue driven surface damage and torsional fatigue
Published in International journal of mechanical sciences (15-02-2024)“…•First S-N curve of surface initiated damage under rolling contact fatigue.•Uniquely conservative mechanical fatigue failure definition used for surface…”
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14
Fatigue Life Reduction in Mixed Lubricated Elliptical Contacts
Published in Tribology letters (01-08-2007)“…Highly loaded ball and rolling element bearings are often required to operate in the mixed elastohydrodynamic lubrication regime in which surface asperity…”
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15
A crystal plasticity and cohesive element model for rolling contact fatigue of bearing steels
Published in Tribology international (01-09-2022)“…Rolling element bearing failures are typically initiated by a two-stage process where a subsurface microcrack formed in the material microstructure…”
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16
Utilizing artificial neural networks to predict the asphalt pavement profile temperature in western Europe
Published in Case Studies in Construction Materials (01-07-2023)“…The temperature profile significantly influences the structural performance of asphalt pavement since it influences various mechanical parameters such as…”
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17
A novel approach to model effects of surface roughness parameters on wear
Published in Wear (15-09-2015)“…Engineering surfaces with similar average or RMS roughness exhibit different values of skewness and kurtosis due to different machining processes. As the…”
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18
Deterministic Modeling of Honed Cylinder Liner Friction
Published in Tribology transactions (01-04-2007)“…An experimental apparatus and an analytical model have been developed to investigate and determine the lubrication condition and frictional losses at the…”
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19
Rolling contact fatigue of coupled EHL and anisotropic polycrystalline materials
Published in Tribology international (01-05-2022)“…Fatigue failure in rolling element bearings (REBs) is a highly stochastic process influenced by the anisotropy of bearing material and the coupled…”
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20
Retained austenite stability on rolling contact fatigue performance of 8620 case‐carburized steel
Published in Fatigue & fracture of engineering materials & structures (01-01-2022)“…Varying levels of retained austenite (RA) were achieved through varying undercooling severity in uniformly treated case carburized 8620 steel. Specimens were…”
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