...Shengnan Zhang; Ming Yan; Yushi Wang A methodology is proposed to study the interplay between tooth wear and contact fatigue under elastohydrodynamic lubrication condition. The modeling methodology includes the influence of contact fatigue on wear and the influence of wear on contact fatigue. First...

...Oliver Menck Fatigue life calculation in bearings is an issue that has been the focus of decades of research culminating in national and international standards that are easily applicable to a wide variety of applications. However, almost all research has focused on simple, repetitive operating...

..., 2012; final manuscript received January 30, 2013; published online April 29, 2013. Assoc. Editor: Robert L. Jackson. 14 10 2012 30 01 2013 References [1] Akiniwa , Y. , Stanzl-Tschegg , S. , Mayer , H. , Wakita , M. , and Tanaka , K. , 2008 , “ Fatigue...

... pressure (Hertz solution) is often used as a control parameter for rolling contact fatigue analysis, whatever the geometry of the contact (point, elliptical, or line contact), the results presented here show that the effective contact pressure and subsequent residual strains are strongly dependent...

... originated fatigue is considered and fatigue life of rough and smooth surfaces is obtained which shows that fatigue life of rough solids is slightly shorter than of the smooth ones. In the general case of a contact region of rough surfaces with multiple connectivity subsurface originated fatigue possesses...

...Michael A. Klecka; Ghatu Subhash; Nagaraj K. Arakere Graded materials with high surface hardness and ductile cores are popularly used in high performance bearing applications to resist surface wear and fatigue damage. The gradient in hardness with depth is commonly determined using micro...

...Frédéric Lévesque; Sylvain Goudreau; Louis Cloutier Aeolian vibrations represent a threat to the integrity of electrical transmission lines. The fretting fatigue of conductors is thus a major concern. The modelization of the contact conditions at critical points is an important tool in assessing...

... plastic deformation, while ZrB 2 -containing composite coating involves only mild abrasive and fatigue wear when sliding against the GCr15 counterpart. SEM image of the ZrB 2 powder 08 07 2010 05 11 2010 15 12 2010 15 12 2010 abrasion adhesion coatings...

... advantages including (1) the capacity to account for localized heterogeneity, i.e., inclusions, grain orientations, and spatial gradients in material properties; (2) the ability to naturally model both crack initiation and propagation; and (3) the ability to model the scatter in fatigue life based...

... morphology features revealed that the predominant erosion mechanism was fatigue failure, irrespective of the temperature. Cavitation is defined by the ASTM standard ( 1 ) as the formation and subsequent collapse of cavities or bubbles that contain vapor or mixture of vapor and gas within a liquid...

...Arthur Francisco; Houssein Abbouchi; Bernard Villechaise Despite the numerous experimental works on rolling contact fatigue, dealing with two-disk contacts, some phenomena still remain badly understood. Most of the test benches, used for that purpose, impose the rotational speeds to the disks...

...Behrooz Jalalahmadi; Farshid Sadeghi It has been widely accepted that the microstructure of bearing materials can significantly affect their rolling contact fatigue (RCF) lives. Hence, microlevel topological features of materials will be of significant importance to RCF investigation. In order...

...Dong Zhu; Ning Ren; Q. Jane Wang Surface pitting due to contact fatigue is a major failure mode of many mechanical components, such as various gears and rolling-element bearings. Pitting life prediction, therefore, is vital to design and performance/reliability improvements. Conventional prediction...

... originated spalling has been recognized as one of the main modes of failure for rolling contact fatigue (RCF) of bearings. In the past few decades a significant number of investigators have attempted to determine the physical mechanisms involved in rolling contact fatigue of bearings and proposed models...

...R. S. Dwyer-Joyce; C. Yao; J. Zhang; R. Lewis; B. W. Drinkwater Failure of a wheel-rail contact is usually by wear or fatigue of either component. Both mechanisms depend on the state of stress, which in turn depends on size and location of the contact patch. In this work, the feasibility...

... in developing the erosion. Moreover, the feature morphology of eroded surfaces, and dislodged particles and their large sizes revealed that microjet-pits had a limited effect on erosion and that the predominant failure was a fatigue process. Hammitt , F. G. , 1980 , Cavitation and Multiphase Flow...

.... The form of the solution provides an explicit description both of the interfacial traction distribution, and the precise environment in which fretting fatigue cracks may subsequently nucleate. The authors wish to thank the Engineering and Physical Sciences Research Council for funding under Grant...

...Behrooz Jalalahmadi; Farshid Sadeghi Microlevel material failure has been recognized as one of the main modes of failure for rolling contact fatigue (RCF) of bearing. Therefore, microlevel features of materials will be of significant importance to RCF investigation. At the microlevel, materials...

... ¯ dimensionless density ( ⋅ ) = ρ ∕ ρ 0 Ko , C. N. , and Ioannides , E. , 1988 , “ Debris Denting—The Associated Residual Stresses and Their Effect on the Fatigue Life of Rolling Bearing: An FEM Analysis ,” Proceedings of the 14th 1988 Leeds-Lyon Symposium on Tribology...

...N. Govindarajan; R. Gnanamoorthy Fatigue properties of powder metallurgy parts are affected mainly by the porosity fraction. Even though it has inferior mechanical and physical properties over the conventional materials, the application of powder metallurgy products in automotive fields is seen...