Results 31 to 40 of about 376,430 (233)
Friction dependence of shallow granular flows from discrete particle simulations [PDF]
, 2011 A shallow-layer model for granular flows is completed with a closure relation for the macroscopic bed friction or basal roughness obtained from micro-scale discrete particle simulations of steady flows. We systematically vary the bed friction by changing
Bokhove, Onno +3 more
core +2 more sources
Dynamics of Elastic Excitable Media
, 1999 The Burridge-Knopoff model of earthquake faults with viscous friction is equivalent to a van der Pol-FitzHugh-Nagumo model for excitable media with elastic coupling.
Burridge R. +9 more
core +3 more sources
Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects
Advanced Engineering Materials, EarlyView.Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini +6 more
wiley +1 more source
Molecular probes reveal deviations from Amontons’ law in multi-asperity frictional contacts
Nature Communications, 2018 Amontons’ law assumes that friction and normal forces depend linearly on the contact area. Here, the authors use a new contact detection method to show that the law is broken because asperities interact and deform in the contact area to change it ...
B. Weber +5 more
doaj +1 more source
Dehesion-deformational nature of friction and wear-out
Вестник Научно-исследовательского института железнодорожного транспорта, 2019 Two friction theories are compared: generally recognized adhesion deformation theory and alternative dehision deformation theory, founded by Prandtl and Deryagin.
Dmitriy P. Markov
doaj +1 more source
Heat transfer of power-law fluids with variable thermal conductivities on a horizontal rough surface
工程科学学报, 2023 Power-law fluids have recently received increasing attention because of their applications in different industrial fields. In previous works, the energy and momentum equations for power-law fluids were considered the same as those for Newtonian fluids ...
Fangfang LIU +3 more
doaj +1 more source
A microscopic 2D lattice model of dimer granular compaction with friction
, 2002 We study by Monte Carlo simulation the compaction dynamics of hard dimers in 2D under the action of gravity, subjected to vertical and horizontal shaking, considering also the case in which a friction force acts for horizontal displacements of the dimers.
A. Barrat +36 more
core +1 more source
3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response
Advanced Engineering Materials, EarlyView.A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley +1 more source
A generalized friction law depicting the thermal effects at chemical bonding interface
FrictionNon-empirical law depicting how atomic-scale friction behaves is crucial for facilitating the practical design of tribosystems. However, progress in developing a practically usable friction law has stagnated because atomic-scale friction arises from the ...
Yang Wang +9 more
doaj +1 more source
Inferred basal friction and mass flux affected by crystal-orientation fabrics
Journal of Glaciology, 2022 We investigate the errors caused by neglecting the crystal-orientation fabric when inferring the basal friction coefficient field, and whether such errors can be alleviated by inferring an isotropic enhancement factor field to compensate for missing ...
Nicholas M. Rathmann, David A. Lilien
doaj +1 more source