Results 11 to 20 of about 238,331 (283)
Journal of Experimental and Theoretical Physics Letters, 2002 We discuss crack propagation along the interface between two dissimilar materials. The crack edge separates two states of the interface, ``stick'' and ``slip''. In the slip region we assume that the shear stress is proportional to the sliding velocity, i.
Brener, Efim A., Marchenko, V. I.
core +2 more sources
Friction of Shear-Fracture Zones [PDF]
Physical Review Letters, 2017 A shear fracture of brittle solids under compression undergoes a substantial evolution from the initial microcracking to a fully formed powder-filled shear zone. Experiments covering the entire process are relatively easy to conduct, but they are very difficult to investigate in detail. Numerically, the large strain limit has remained a challenge.
Pylväinen, J. I. +3 more
openaire +4 more sources
Shearing of frictional sphere packings [PDF]
EPL (Europhysics Letters), 2011 We measure shear response in packings of glass beads by pulling a thin, rough, metal plate vertically through a bed of volume fraction phi, which is set, before the plate is pulled, in the range 0.575 to 0.628. The yield stress is velocity independent over 4 decades and increases exponentially with phi, with a transition at phi approximately 0.595.
Metayer, J. +4 more
openaire +4 more sources
Friction by Shear Deformations in Multilayer Graphene [PDF]
The Journal of Physical Chemistry C, 2012 We present accurate calculations of friction in graphene films in configurations simulating the presence of an anchoring substrate. We find that a slider induces both out-of-plane and shear deformations, which increase with the thickness of the supported film.
REGUZZONI, MARCO +3 more
openaire +5 more sources
Dilatancy and friction in sheared granular media [PDF]
The European Physical Journal E, 2000 10 ...
F. Lacombe, S. Zapperi, H. J. Herrmann
openaire +3 more sources
Friction-induced shear thickening: A microscopic perspective [PDF]
EPL (Europhysics Letters), 2016 We develop a microscopic picture of shear thickening in dense suspensions which emphasizes the role of frictional forces, coupling rotational and translational degrees of freedom. Simulations with contact forces and viscous drag only, reveal pronounced shear thickening with a simultaneous increase in contact number and energy dissipation by frictional ...
Maiti, Moumita +2 more
openaire +3 more sources
Interfacial friction between semiflexible polymers and crystalline surfaces [PDF]
, 2012 The results obtained from molecular dynamics simulations of the friction at an interface between polymer melts and weakly attractive crystalline surfaces are reported.
Allen M. P. +3 more
core +3 more sources
Shearing the vacuum - quantum friction [PDF]
Journal of Physics: Condensed Matter, 1997 We consider two perfectly smooth featureless surfaces at T=0, defined only by their respective dielectric functions, separated by a finite distance, and ask the question whether they can experience any friction when sheared parallel to their interface. We find large frictional effects comparable to everyday frictional forces provided that the materials
openaire +2 more sources
Applied Sciences, 2022 This study aims to clarify the relationship between surface hardness and the peak interfacial frictional coefficient under different particle sizes. The relationship between particle size and the peak interfacial frictional coefficient with different ...
Xianqiang Zhao +2 more
doaj +1 more source
Shear Thickening of Dense Suspensions: The Role of Friction [PDF]
, 2019 Shear thickening of particle suspensions is characterized by a transition between lubricated and frictional contacts between the particles. Using 3D numerical simulations, we study how the inter-particle friction coefficient influences the effective ...
Bonn, Daniel +3 more
core +2 more sources