Results 11 to 20 of about 5,627 (140)

Speed and Atmosphere Influences on Nanotribological Properties of NbSe2 [PDF]

, 2009
Nanotribological properties of NbSe2 are studied using an atomic friction force microscope. The friction force is measured as a function of normal load and scan speeds ranging from 10 nm s−1 to 40 μm s−1 under two atmospheres (air and argon).
Bade, François, Bilas, Philippe, Delbé, Karl, Mansot, Jean-Louis, Romana, Laurence   +4 more
core   +2 more sources

Evaluation of the real contact area in three-body dry friction by micro-thermal analysis [PDF]

, 2009
Many tribological properties and wear mechanisms occurring on the micro-and nanoscale are strongly controlled by the so-called real contact area (Ar) which is a small fraction of the nominal or apparent contact area (Aa). The determination of Ar is often
Bourrat, Xavier, Djilali, Toufik, Njiwa, Richard Kouitat, Pantalé, Olivier, Stempflé, Philippe, Takadoum, Jamal   +5 more
core   +4 more sources

Optimization algorithms for the solution of the frictionless normal contact between rough surfaces [PDF]

, 2015
This paper revisits the fundamental equations for the solution of the frictionless unilateral normal contact problem between a rough rigid surface and a linear elastic half-plane using the boundary element method (BEM).
Bemporad, A., Paggi, M.
core   +2 more sources

Simulations of the Static Friction Due to Adsorbed Molecules

, 2001
The static friction between crystalline surfaces separated by a molecularly thin layer of adsorbed molecules is calculated using molecular dynamics simulations.
A. Berman, A. Liebsch, A. Volmer, A.L. Demirel, A.R.C. Baljon, B. Smit, B.J. Briscoe, B.J. Briscoe, B.J. Briscoe, B.N.J. Persson, B.N.J. Persson, C. Bennemann, C. Caroli, C.F. McFadden, D. Dowson, E. Manias, E. Rabinowicz, E.D. Smith, F.P. Bowden, G. Grüner, G. He, G. He, G.M. McClelland, G.S. Grest, Gang He, H. Czichos, I.M. Ward, J. Gao, J. Gao, J. Gao, J. Krim, J. Krim, J. Krim, J. P. Hansen, J.A. Greenwood, J.A. Harrison, J.A. Harrison, J.A. Harrison, J.H. Dieterich, J.M. Martin, J.S. Ko, K. Kremer, K. Shinjo, M. Cieplak, M. Godet, M. Hirano, M. Hirano, M. Hirano, M. Hirano, M. Weiss, M.H. Müser, M.H. Müser, M.J. Stevens, M.L. Gee, M.O. Robbins, M.O. Robbins, M.P. Allen, M.R. Sørensen, Mark O. Robbins, P. Bak, P. Berthoud, P.A. Thompson, P.A. Thompson, R.W. Carpick, S. Aubry, S. Granick, Y. Berthier, Y.I. Frenkel   +67 more
core   +1 more source

Modeling friction: From nanoscale to mesoscale [PDF]

, 2013
The physics of sliding friction is gaining impulse from nanoscale and mesoscale experiments, simulations, and theoretical modeling. This Colloquium reviews some recent developments in modeling and in atomistic simulation of friction, covering open-ended ...
Manini, Nicola, Tosatti, Erio, Urbakh, Michael, Vanossi, Andrea, Zapperi, Stefano   +4 more
core   +2 more sources

High resolution observations of friction-induced oxide and its interaction with the worn surface [PDF]

, 2002
A detailed transmission electron microscopy study of oxide and oxygen-containing phase formation during the sliding wear of metals, composites and coatings is provided.
Bedolla-Jacuinde, A., Jones, H., Leonard, A. J., Luo, Quanshun, Perrin, C., Rainforth, W. M., Wang, Y.   +6 more
core   +1 more source

Advances in DFT-Based Computational Tribology: A Review

Lubricants
The rapid advancement of micro/nano-electromechanical systems (MEMS/NEMS) and precision manufacturing has fundamentally challenged traditional friction theories at the nanoscale. Classical continuum models fail to capture energy dissipation mechanisms at
Haochen Feng, Ziwen Cheng, Zhibin Lu, Qichang He   +3 more
doaj   +1 more source

STUDIES OF SELECTED TRIBOLOGICAL CHARACTERISTICS OF SPIROID GEARS IN THE ASPECT OF MOLECULAR-MECHANICAL THEORY OF FRICTION

Transport Problems
Spiroid gears are used in various machine drive systems in the automotive and aviation industries. They are characterised by their small size and ability to achieve high gear ratios while maintaining the positioning accuracy of the driven device. This type of gear can operate continuously or at intervals. During the operation at intervals, dry friction
Aleksander MAZURKOW, Wojciech HOMIK
openaire   +1 more source

Controlling turbulent drag across electrolytes using electric fields

, 2017
Reversible in operando control of friction is an unsolved challenge crucial to industrial tribology. Recent studies show that at low sliding velocities, this control can be achieved by applying an electric field across electrolyte lubricants.
Lee, Alpha A., Ostilla-Mónico, Rodolfo
core   +1 more source

Finite Element Modeling of a Thermoplastic Polyurethane Ball for Rolling Seismic Isolation

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The Elastomeric‐Ball Pendulum (EBP) system, which consists of an elastomeric ball rolling on a spherical concrete surface, has been proposed as an isolation system for lightweight structures. Experimental tests have shown that the mechanics of such a rolling ball are remarkably complicated because the vertical load changes the shape of the ...
Sergio I. Reyes, Dimitrios Konstantinidis, Michalis F. Vassiliou   +2 more
wiley   +1 more source