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Subject-specific tribo-contact conditions in total knee replacements: a simulation framework across scales
(2023)
Fundamental knowledge about in vivo kinematics and contact conditions at the articulating interfaces of total knee replacements are essential for predicting and optimizing their behavior and durability. However, the ...
A finite strain contact model for mixed lubricated surfaces in forming processes
(Elsevier, 2013-06)
For an accurate simulation of forming processes, it is of paramount importance to model the different lubrication regimes that can develop at the contact interface. These might vary from zone to zone of the forming piece, ...
Experimental and numerical analysis of dry contact in the pin on disc test
(Amsterdam, 2013)
The reduction of friction and wear in systems presenting metal-to-metal contacts, as in several mechanical components, represents a traditional challenge in tribology. In this context, this work presents a computational ...
Contact-angle-hysteresis effects on a drop sitting on an incline plane
(American Physical Society, 2019-04)
We study the contact-angle hysteresis and morphology changes of a liquid drop sitting on a solid substrate inclined with respect to the horizontal at an angle α. This one is always smaller than the critical angle, αcrit, ...
Energy dissipation by friction for sliding blocks subjected to near-fault seismic base motion
(Techno-Press, 2021-05)
The objective of this study was to determine friction ratios that maximize energy dissipation on a seismic damper. The aforementioned friction damper basically consists of mass blocks that are able to slide on a flat ...
Sistemas dinâmicos suaves por partes com aplicações em HIV e câncer
(Universidade Estadual Paulista (Unesp), 2022-01-27)
Neste trabalho desenvolvemos inicialmente alguns conceitos da teoria de Sistema Dinâmicos Suaves por Partes. Definimos regiões de acordo com o tipo de contato de um campo de vetores descontínuo com sua variedade de ...
Estudo do deslizamento de aço inoxidável austenítico contra compósito de PTFE e carga de rejeito de scheelita
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA MECÂNICA, 2018-07-30)
Contact pressure and sliding speed are parameters that have an influence over the
coefficient of friction and the temperature during the contact between PTFE
composites and a metallic counter-face. The reduction of ...
Liquid-polymer triboelectricity: Chemical mechanisms in the contact electrification process
(Royal Society of Chemistry, 2020-08)
The liquid-polymer contact electrification between sliding water drops and the surface of polytetrafluoroethylene (PTFE) was studied as function of pH and ionic strength of the drop as well as ambient relative humidity ...
Análise da influência da energia de superfície no comportamento tribológico de revestimentos (AlCrN e TiAlN) em deslizamento contra aço AISI 4340
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAPrograma de Pós-Graduação em Engenharia MecanicaUFMG, 2020-04-17)
The performance of metal cutting tools is drastically affected by the presence of hard coatings, which promote longer tool lives, higher productivity and superior quality to the machined components. Nevertheless, the ...