Results 61 to 70 of about 9,089,683 (229)

Friction and Cartilage Wear in Hemiarthroplasty: A Systematic Review of Key Influencing Factors

open access: yesLubricants
Hemiarthroplasty addresses joint damage confined to one side, preserving native cartilage and bone, but accelerated degeneration of the opposing cartilage can compromise outcomes. This systematic review should clarify whether coefficient of friction (COF)
Victoria P. Marino   +8 more
doaj   +1 more source

A study on loaded tooth contact analysis of a cycloid planetary gear reducer considering friction and bearing roller stiffness

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
The cycloid planetary gear drives designed in the so-called RV-type play an important role in precision power transmission. Not only the high reduction ratio, but also the shock absorbability is the significant advantage.
Ching-Hao HUANG, Shyi-Jeng TSAI
doaj   +1 more source

A comparison of slip, disjoining pressure, and interface formation models for contact line motion through asymptotic analysis of thin two-dimensional droplet spreading [PDF]

open access: yes, 2014
The motion of a contact line is examined, and comparisons drawn, for a variety of models proposed in the literature. Pressure and stress behaviours at the contact line are examined in the prototype system of quasistatic spreading of a thin two ...
Kalliadasis, Serafim   +3 more
core   +2 more sources

Modelling a Coupled Thermoelectromechanical Behaviour of Contact Elements via Fractal Surfaces [PDF]

open access: yes, 2016
A three-dimensional coupled thermoelectromechanical model for electrical connectors is here proposed to evaluate local stress and temperature distributions around the contact area of electric connectors under different applied loads.
GUARNIERI, MASSIMO   +2 more
core   +3 more sources

The Hertz contact problem in couple-stress elasticity

open access: yesInternational Journal of Solids and Structures, 2019
The classical three-dimensional Hertz contact problem is re-examined in the present work within the context of couple-stress elasticity. This theory introduces characteristic material length scales that emerge from the underlying microstructure and has ...
P. Gourgiotis   +3 more
semanticscholar   +1 more source

CONTACT NOTCH STRESS ASSESSMENT WITHIN FRICTIONAL CONTACT JOINTS

open access: yesDyna, 2012
En el artículo se analizan, por medio del método del elemento finito (FE), las concentraciones de esfuerzo en los límites de zonas de contacto nominales que incluyen deslizamiento con fricción. Los elementos mecánicos para el análisis numérico se consideran como una flecha acoplada a un cubo de rueda por medio de aros cónicos deformables. El proceso de
SZWEDOWICZ, DARIUSZ, BEDOLLA, JORGE
openaire   +3 more sources

The influence of consolidation on shear test results [PDF]

open access: yes, 1987
Measurements of the yield behaviour of a cohesive bulk solid in the Jenike shear tester are normally done in two steps. First, pre-shearing to a steady state yielding, and secondly, shearing under a lower normal stress to establish the shear stress at ...
Haaker, G.
core   +2 more sources

Research on the Calculation Method for the Contact Stress of Wind Turbine Main Shaft Bearings Based on Finite Element Analysis

open access: yesLubricants
Under alternating loads, the contact situation for self-aligning roller bearings in the main shaft of a wind turbine is complex. Few methodologies exist for calculating the contact stress of main shaft bearings.
Yi Zou   +4 more
doaj   +1 more source

Finite Element Modeling of an Elderly Person’s Cornea and Rigid Gas Permeable Contact Lenses for Presbyopic Patients

open access: yesApplied Sciences, 2018
Rigid gas permeable (RGP) contact lenses are a common presbyopic correction tool. However, many patients clinically need a long period of adaptation after wearing.
Han-Chao Chang   +3 more
doaj   +1 more source

Modeling and finite element simulation of temperature field in rail abrasive belt grinding

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesRail is an important component of rail transit, carrying train loads and guiding vehicle direction in service. Due to worn-outs and shocks during service, rails can cause various defects such as corrugation, spalling and squat, which seriously ...
Haipeng WANG   +3 more
doaj   +1 more source

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