... in the macromodel for each roughness representing the contact situation. Subsequently, the resulting contact areas were compared with the published experimental data. This comparison showed that the material model for the smooth contact was able to emulate the experimentally determined contact areas. Including...

...., tangential and normal contact forces, contact area, contact pressure, etc. are investigated under the influence of varying gradation parameters. The evolution of stresses and deformation in the asperity are also studied for different gradation parameters. Fig. 7 Non-dimensional tangential displacement...

... 26% more braking torque is offered by fumed silica + MWCNTs-based MR fluid in comparison to other MRFs at 1200 RPM. multiwall carbon nanotubes fumed silica MR fluids yield stress MR disc brake torque behavior brakes contact area fluid friction viscosity Science and Engineering...

.... A similar running-in distance is observed for the three loads, after which the coefficient of friction remains relatively steady, except for one replicate using 50 N. Accommodation of the surfaces in contact takes place during the running-in regime with an appreciable variation in the contact area...

... of contact interface R = the equivalent radius of curvature of two asperities T = the external force on two asperities in the horizontal direction parallel to the contact interface T ′ = the total tangential load of contact interface A n = the nominal contact area of a rough...

... author. Email: aleksandra.krolicka@pwr.edu.pl Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 16 06 2021 01 12 2021 01 12 2021 08 02 2022 ploughshare abrasive wear thermovision field tests abrasion contact area...

... for publication in the J ournal of T ribology . 17 09 2021 14 01 2022 15 01 2022 08 02 2022 linear motion ball guide (LMBG) preload degradation machining error wear rate bearings contact area National Natural Science Foundation of China 10.13039/501100001809...

..., it begins to decrease until the two curves are close to coincide again. The dimensionless elastic–plastic contact hardness is introduced. The relation between the real contact area and the contact pressure of the indentation model can be acquired quickly. The results show that the geometric shape...

... lubrication. Conventional 2-body mixed lubrication is a special case of 3-body mixed lubrication analysis with particle size of zero. This study revealed that the values of real contact area, film thickness, contact mode, and the solid contact load in 3-body contact were larger than those in ideal 2-body...

...Jinli Xu; Jiwei Zhu; Wei Xia; Baolei Liu A novel micro-asperity contact area model, which considers influences of strain hardening, is proposed to describe contact area between a deformable sphere and a rigid flat for metallic materials. First, a generalized formula considering work-hardening...

... from the geometrical contact area and the number of contact patches. For three typical rough surfaces with various mechanical properties, the present model gives accurate predictions of the load-area relation, which are verified by direct finite element simulations. An approximately linear load-area...

... contact area dry friction films hardness sliding surface layers surface properties and characterization surfaces tribological systems wear The B4C monolayered coating PVD deposition process was carried out using an industrial CemeCom CC800/9ML PVD Unbalanced Magnetron Sputtering...

... ribology . 30 01 2021 26 04 2021 26 04 2021 18 05 2021 ball bearing different operation conditions the fatigue life the optimum clearance bearings contact area rolling element bearings rolling fatigue As the weakest link of the whole machine, the fatigue life...

...S. Sklenak; D. Mevissen; J. Brimmers; C. Brecher In a rolling contact, the tribological properties in terms of friction, wear, and fatigue are significantly influenced by the surface roughness. Due to solid contact of the surfaces in the contact area, the roughness and thus also the tribological...

... Email: matthias.baumann@ima.uni-stuttgart.de Email: frank.bauer@ima.uni-stuttgart.de Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 05 10 2020 28 01 2021 28 01 2021 04 03 2021 contact area fluid film lubrication...

... contact analysis soft coating coatings contact contact area contact mechanics surfaces The evolution of the percentage of the decreased coating thickness Δ t % = ( t 0 − t ′ ) / t 0 with dimensionless interference δ * is also considered in this paper...

.... It is seen that the asperity interaction effect is more than just the delay of contact as shown in the statistical model, it also contributes to the loss of linearity between the contact force and the contact area. Our model also shows that: for elastic contact, using spherical asperities results in a larger...

... Contact area Contact mechanics Surface roughness Asperities On a rough surface exist many micro-asperities, whose apexes are usually considered as spheres with a same radius. In 1966, Greenwood and Williamson [ 1 ] assumed that the height of the microspheres obeys the Gaussian distribution...

... December 11, 2017; final manuscript received May 8, 2018; published online July 12, 2018. Assoc. Editor: Wang-Long Li. 11 12 2017 08 05 2018 Contact Contact area Contact mechanics Hardness Rolling Rolling fatigue Surface layers Surface properties Surface treatments Surfaces...

... components including adhesive component, which is established at the real contact areas of friction pairs through the intermolecular force at the interface developing an interfacial shear stresses, which resist against the sliding of friction couple, deformation of cohesive region located beneath the real...