Results 21 to 30 of about 1,622,252 (341)
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
Effects of Groove Feature on Shear Behavior of Steel-Sand Interface
Advances in Civil Engineering, 2020 Surface groove morphology of structure and particle distribution of soil had a significant effect on the surface friction of structure. In order to investigate the interface shear stress-shear displacement curves, interface model and interface shear ...
Jukun Guo +5 more
doaj +1 more source
Shear friction capacity of self-consolidating concrete
Revista IBRACON de Estruturas e Materiais, 2020 An experimental research was developed to evaluate shear transfer in self-consolidating. Three concrete mixes were prepared, one conventional and two self-consolidating, differing on the proportion of the coarse and fine aggregate used.
Gustavo Savaris +1 more
doaj +1 more source
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
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
Shear Controls Frictional Aging by Erasing Memory
Physical Review Letters, 2020 We simultaneously measure the static friction and the real area of contact between two solid bodies. These quantities are traditionally considered equivalent, and under static conditions both increase logarithmically in time, a phenomenon coined aging. Here we show that the frictional aging rate is determined by the combination of the aging rate of the
Sam Dillavou, Shmuel M. Rubinstein
openaire +3 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
Anomalous acoustic reflection on a sliding interface or a shear band [PDF]
, 2003 We study the reflection of an acoustic plane wave from a steadily sliding planar interface with velocity strengthening friction or a shear band in a confined granular medium.
B. Velický +22 more
core +1 more source
Revealing the frictional transition in shear-thickening suspensions [PDF]
Proceedings of the National Academy of Sciences, 2017 Significance The sudden and severe increase in the viscosity of certain suspensions above an onset stress is one of the most spectacular phenomena observed in complex fluids. This shear thickening, which has major implications for industry, is a long-standing puzzle in soft-matter physics.
Clavaud, C +3 more
openaire +3 more sources