Results 11 to 20 of about 281,766 (191)

Size Scaling of Static Friction [PDF]

open access: yesPhysical Review Letters, 2013
Sliding friction across a thin soft lubricant film typically occurs by stick-slip, the lubricant fully solidifying at stick, yielding and flowing at slip. The static friction force per unit area preceding slip is known from molecular dynamics (MD) simulations to decrease with increasing contact area. That makes the large-size fate of stick-slip unclear
O. Braun, N. Manini, E. Tosatti
openaire   +5 more sources

Effects of Friction Plate Hardness and Surface Orientation on the Frictional Properties of Cereal Grain

open access: yesInternational Journal of Food Science, 2020
The objective of this study was to evaluate the effects of the friction plate hardness and surface orientation of a friction plate on the angle and coefficient of static friction of cereal kernels.
Zdzisław Kaliniewicz   +5 more
doaj   +1 more source

Motion analysis of passive dynamic walking with a rigorously constraint model: A necessary condition for maintaining period-1 gait

open access: yesBiomimetic Intelligence and Robotics, 2022
The friction force is an important environmental factor that influences dynamic walking. While most of the related works simply assume static friction or Coulomb friction, we use the LuGre friction, which accounts for both static and dynamic effects, to ...
Yanqiu Zheng   +5 more
doaj   +1 more source

Concrete-to-concrete shear friction behavior under cyclic loading: experimental investigation

open access: yesScientific Reports, 2022
This study investigated the concrete-to-concrete friction behavior under dynamic cyclic loading at different loading rates, vertical loads, and surface roughness.
Mohamad Taklas   +4 more
doaj   +1 more source

Aging of the frictional properties induced by temperature variations [PDF]

open access: yes, 2010
The dry frictional contact between two solid surfaces is well-known to obey Coulomb friction laws. In particular, the static friction force resisting the relative lateral (tangential) motion of solid surfaces, initially at rest, is known to be ...
Bertin, Eric, Géminard, Jean-Christophe
core   +6 more sources

Analysis of friction among grain particles in warehousebased on finite element method

open access: yesLiang you shipin ke-ji, 2019
In order to investigate the stress distribution between grain particles and the distribution of relative static friction between grain particles and silo walls, the ideal elastic-plastic constitutive relationship and Drucker-prager yield criterion were ...
LIU Shi-jie, WANG Ge-ge, GUO Yang
doaj   +1 more source

Statistical approach on the inter-yarn friction behavior of the dual-phase STF/ρ-Aramid impregnated fabrics via factorial design and 3D-RSM

open access: yesHeliyon, 2023
Shear thickening fluids (STFs) refer to non-Newtonian fluids of the dilatant variety, wherein their viscosity experiences a significant surge with an escalation in the shear rate. In this investigative work, the friction behavior between yarns (pull-out)
Thiago F. Santos   +4 more
doaj   +1 more source

Emergent friction in two-dimensional Frenkel-Kontorova models [PDF]

open access: yes, 2016
Simple models for friction are typically one-dimensional, but real interfaces are two-dimensional. We investigate the effects of the second dimension on static and dynamic friction by using the Frenkel-Kontorova (FK) model.
de Wijn, Astrid S.   +2 more
core   +4 more sources

How static is static friction? [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
Physics 101 wisdom suggests that we need to overcome the static friction force, Fs, to initiate the lateral motion of one solid body over another one and that a force greater than the kinetic friction, Fk, is required to maintain the gliding nature of the contact. To drag a solid through a fluid, no such threshold forces exist.
openaire   +2 more sources

Friction anisotropy at Ni(100)/(100) interfaces: Molecular dynamics studies [PDF]

open access: yes, 2002
The friction of surfaces moving relative to each other must derive from the atomic interaction at interfaces. However, recent experiments bring into question the fundamental understanding of this phenomenon.
Cheng, Yang-Tse   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy