Results 21 to 30 of about 1,057,920 (276)

Friction dependence of shallow granular flows from discrete particle simulations [PDF]

open access: yes, 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   +13 more sources

Is internal friction friction?

open access: yesGeophysical Research Letters, 1996
Mogi [1974] proposed a simple model of the incipient rupture surface to explain the Coulomb failure criterion. We show here that this model can plausibly be extended to explain the Mohr failure criterion. In Mogi's model the incipient rupture surface immediately before fracture consists of areas across which material integrity is maintained (intact ...
J. C. Savage   +2 more
openaire   +1 more source

Microstructure evolution and stress corrosion cracking sensitivity of friction stir welded high strength AA7085 joint

open access: yesMaterials & Design, 2021
Influence of welding process parameters on stress corrosion cracking (SCC) sensitivity through thickness of 12 mm thick AA7085-T7452 joints by single-sided and double-sided friction stir welding (FSW) was investigated via the slow strain rate tensile ...
W.F. Xu   +5 more
doaj   +1 more source

Friction and Friction Heat of Micronscale Iron [PDF]

open access: yesJournal of Tribology, 2020
Abstract This paper investigates the friction and friction heat of the micronscale iron under the influences such as the velocity of the slider and temperature of the substrate by using the smoothed particle hydrodynamics simulations.
Van Sang, Le   +4 more
openaire   +2 more sources

Rotational Quantum Friction [PDF]

open access: yesPhysical Review Letters, 2012
Published on PRL as Editors ...
Zhao, R.   +3 more
openaire   +4 more sources

Quantum field theory of the van der Waals friction [PDF]

open access: yes, 2006
The van der Waals friction between two semi-infinite solids, and between a small neutral particle and semi-infinite solid is reconsidered on the basis of thermal quantum field theory in the Matsubara formulation. The calculation of the friction to linear
A. A. Abrikosov   +16 more
core   +2 more sources

METHOD OF DIMENSIONALITY REDUCTION IN CONTACT MECHANICS AND FRICTION: A USER'S HANDBOOK. II. POWER-LAW GRADED MATERIALS

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2016
Until recently, the only way of solving contact problems was to applythree-dimensional contact theories. However, this presupposes higher mathematical and numerical knowledge, which usually only research groups possess.
Markus Hess, Valentin L. Popov
doaj   +1 more source

Quantum Friction [PDF]

open access: yesChinese Physics Letters, 2012
The Brownian motion of a light quantum particle in a heavy classical gas is theoretically described and a new expression for the friction coefficient is obtained for arbitrary temperature. At zero temperature it equals to the de Broglie momentum of the mean free path divided by the mean free path.
openaire   +2 more sources

Investigations on interface microstructure and strength properties of dissimilar tin bronze/superalloy diffusion bonded joints

open access: yesScience and Engineering of Composite Materials, 2015
Diffusion bonding of dissimilar metals QSn4-3 and GH34 by using a QSn6.5-0.1 interlayer has been conducted in this study. The purpose of the study is to investigate the interface microstructure and strength of the joints, and to demonstrate the ...
Li Peng   +4 more
doaj   +1 more source

Universal behavior of internal friction in glasses below T : anharmonicity vs relaxation [PDF]

open access: yes, 2006
Comparison of the internal friction at hypersonic frequencies between a few K and the glass transition temperature Tg for various glasses brings out general features. At low temperature, internal friction is only weakly dependent on the material. At high
C. A. Angell   +18 more
core   +3 more sources

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