Results 51 to 60 of about 386,992 (300)

Theoretical and experimental characterization for macro-micro friction behaviors of EPDM rubber

Polymer Testing, 2021
Friction behaviors of Ethylene Propylene Diene Monomer (EPDM) rubber ring will result in the oil leakage of radial lip seals. This research provides theoretical and experimental characterization for the friction behaviors of EPDM rubber.
Chuanbing Zhang, Jian Wu, Fei Teng, Benlong Su, Youshan Wang, Hongrui Ao   +5 more
doaj   +1 more source

High speed friction microscopy and nanoscale friction coefficient mapping [PDF]

Measurement Science and Technology, 2014
As mechanical devices in the nano/micro length scale are increasingly employed, it is crucial to understand nanoscale friction and wear especially at technically relevant sliding velocities. Accordingly, a novel technique has been developed for Friction Coefficient Mapping (FCM), leveraging recent advances in high speed AFM.
Bosse, James, Lee, S, Andersen, Andreas Søe, Sutherland, Duncan S, Huey, Brian   +4 more
openaire   +2 more sources

Effect of Friction on Dense Suspension Flows of Hard Particles

, 2017
We use numerical simulations to study the effect of particle friction on suspension flows of non-Brownian hard particles. By systematically varying the microscopic friction coefficient $\mu_p$ and the viscous number $J$, we build a phase diagram that ...
DeGiuli, E., Trulsson, M., Wyart, M.
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Effect of Neutral Salt Spray Corrosion on the Tribological Performance of MoS₂ Coatings for Bolts [PDF]

Cailiao Baohu
The composite treatment of MoS2 coating and anodic oxidation is widely applied to the surface lubrication of fasteners such as bolts.However，its evolution law of lubrication performance under corrosion and high-humidity conditions in coastal ...
ZHANG Qinying, YIN Xiaojian, GAO Xuemin, MA Jianhua, FENG Derong, WANG Yamei, MING Quanyuan, WAN Qiang
doaj   +1 more source

Change in Time of the Value of Dry and Lubricated Friction Coefficients for Surfaces Generated by Different Processing Methods

Lubricants, 2023
The surfaces of the mechanical parts involved in friction processes are made using different processing methods. Each of these processing methods leads to a certain profile of the asperities of the generated surfaces.
Gheorghe Nagîț, Andrei Marius Mihalache, Oana Dodun, Adelina Hrițuc, Laurențiu Slătineanu, Vasile Merticaru   +5 more
doaj   +1 more source

The dependence of the dry friction threshold on rupture dynamics

, 2011
The static friction coefficient between two materials is considered to be a material constant. We present experiments demonstrating that the ratio of shear to normal force needed to move contacting blocks can, instead, vary systematically with ...
Ben-David, Oded, Fineberg, Jay
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Assessment of the Tribological Performance of Bio-Based Lubricants Using Analysis of Variance

Advances in Mechanical and Materials Engineering, 2023
The purpose of this article is to determine the coefficient of friction of the DC04 steel sheet using a specially designed flat die strip drawing test.
Marek Szewczyk, Krzysztof Szwajka
doaj   +1 more source

Multi-scale analysis of the roughness effect on lubricated rough contact [PDF]

, 2014
Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for both the minimization of fuel ...
DEMIRCI, Ibrahim
core   +2 more sources