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2020
A variety of testing machines have been developed to test rolling contact fatigue (RCF) and rolling–sliding contact fatigue (RSCF). Many of the RSCF machines have been designed to run at a fixed slide ratio using a geared driveline between the test specimen and the load wheel, which limits the versatility.
Nicholas Novack +2 more
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A variety of testing machines have been developed to test rolling contact fatigue (RCF) and rolling–sliding contact fatigue (RSCF). Many of the RSCF machines have been designed to run at a fixed slide ratio using a geared driveline between the test specimen and the load wheel, which limits the versatility.
Nicholas Novack +2 more
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Contact fatigue in rolling-element bearings
Engineering Failure Analysis, 1997Abstract Surface contact fatigue is a common cause of failure in rolling-element bearings. The extent of damage observed depends on the contact loads, the curvature of the rolling elements, and the relative motion between the contacting surfaces. The characteristics of the various types of contact fatigue are as follows: 1.
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Parametric Simulation of Rolling Contact Fatigue
ASME 2008 Rail Transportation Division Fall Technical Conference, 2008Simulations of dynamic vehicle performance were used by the Wheel Defect Prevention Research Consortium (WDPRC) to explore which track and vehicle variables affect wheel fatigue life. A NUCARS® model was used to efficiently examine the effects of a multitude of parameters including wheel/rail profiles, wheel/rail lubrication, truck type, curvature ...
Scott M. Cummings +2 more
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Critical stresses in rolling contact fatigue
Wear, 1981Abstract An analysis of the main hypotheses concerning the critical stresses in rolling contact fatigue is presented. It is considered that none of these hypotheses correlates adequately with all the experimental aspects of the phenomenon of rolling contact fatigue.
N.G. Popinceanu, E. Diaconescu, S. Cretu
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Cavitation erosion and rolling contact fatigue
Wear, 1974Abstract A cavitation apparatus has been used to evaluate the fatigue-resistance of lubricants, and a good correlation is found between cavitation and laboratory fatigue tests. Both fatigue pitting and cavitation pitting appear to be due primarily to hydrogen penetration, which is aggravated by reactive gas atmospheres, chemically-active lubricants ...
V. Riddei, P. Pacor, J.K. Appeldoorn
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Nonmetallic Inclusions and Rolling Contact Fatigue
1975Rolling contact fatigue tests were carried out on an angular contact ball bearing test rig at a low unit pressure (Po = 260 kp/mm2). The results show a sound “relative correlation” between the rolling contact fatigue and the content of nonmetallic inclusions.
K Böhm +3 more
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Rolling contact fatigue behaviour of thermally sprayed rolling elements
Surface and Coatings Technology, 1996An experimental approach with a modified four-ball machine is used to investigate the rolling contact fatigue (RCF) performance and failure mode of thermally sprayed rolling element bearing steel balls. A superdetonation gun (SDG 2040) is used to deposit a tungsten carbide coating (WC-15%Co) on steel substrate balls.
R. Ahmed, M. Hadfield
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Prediction of fatigue crack initiation for rolling contact fatigue
International Journal of Fatigue, 2000In finite element (FE) simulations of a twin disc test of a wheel/rail contact, fatigue crack initiation criteria for elastic shakedown, plastic shakedown and ratchetting material responses were evaluated for a pearlitic rail steel BS11 normal grade.
Ringsberg, J. W. +4 more
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Crack Behaviour under Rolling Contact Fatigue
1993A theoretical approach on surface crack influence on rolling contact stress field is presented. A steady rolling contact model and a fatigue crack model are combined. Connection between the two problems is introduced through surface geometry modification caused by displacements generated by cracks.
M. C. Dubourg, J. J. Kalker
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Microstructural Alterations in Rolling Contact Fatigue
1966Stress-induced, structurally altered regions of ball and roller bearings were examined by transmission electron microscopy. The sectioning procedure is described in detail. A dark-etched region on roller bearings of carburized 4620 steel contained banded areas which had little in common with the microstructure of the martensite elsewhere.
A. H. King, J. L. O'Brien
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