Results 21 to 30 of about 238,331 (283)

Application of Friction Shear Test for Constitutive Modeling Evaluation of Magnesium Alloy AZ31B at high Temperature [PDF]

open access: yes, 2020
The experimental determination of the flow stress and its mathematical formulation are essential for the numerical simulation of metal forming processes.
Gensch, Felix   +2 more
core   +1 more source

Shear Controls Frictional Aging by Erasing Memory

open access: yesPhysical 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

Anomalous acoustic reflection on a sliding interface or a shear band [PDF]

open access: yes, 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]

open access: yesProceedings 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

Static Strength of Friction-Type High-Strength Bolted T-Stub Connections under Shear and Compression

open access: yesApplied Sciences, 2020
The friction-type high-strength bolted (FHSB) T-stub connection has been widely used in steel structures, due to their good fatigue resistance and ease of installation.
Gangnian Xu   +4 more
doaj   +1 more source

Thermodynamics and kinetics of boundary friction [PDF]

open access: yes, 2011
A deterministic theory describing the behavior of an ultrathin lubricant film between two atomically-smooth solid surfaces is proposed. For the description of lubricant state the parameter of excess volume arising due to chaotization of solid medium ...
A.V. Khomenko   +41 more
core   +3 more sources

RELATION BETWEEN STANDERD PENETRATION TEST AND SKIN RESISTANCE OF DRIVEN CONCRETE PILE IN OVER CONSOLIDATED CLAY SOIL

open access: yesJournal of Engineering, 2011
In this research the relation between skin resistances and standard penetration test of over consolidated clay soils has been studied. The research includes doing boreholes at Babil governorate in Iraq to get undisturbed samples and standard penetration
Zuhair Kadhim Jahan Ger
doaj   +1 more source

Experimental discrimination of plowing friction and shear friction

open access: yesTribology Letters, 2006
The friction experienced by a hard indenter plowing through a relatively soft material consists of two contributions. The plastic deformation of the soft specimen yields a plowing friction component while the shear forces at the area of contact yield shear friction [1–3].
Kamminga, J.D. (author)   +1 more
openaire   +3 more sources

Derivation of the Coefficients in the Coulomb Constant Shear Friction Law from Experimental Data on the Extrusion of a Material into V-Shaped Channels with Different Convergence Angles: New Method and Algorithm

open access: yesMetals, 2022
The combined Coulomb constant shear friction law is widely used in commercial and research software for the finite-element analysis (FEA) of metalworking and is naturally more flexible and hence, more relevant to real-life manufacturing than the ...
Igor Bobrovskij   +4 more
doaj   +1 more source

Slip boundary conditions for shear flow of polymer melts past atomically flat surfaces [PDF]

open access: yes, 2008
Molecular dynamics simulations are carried out to investigate the dynamic behavior of the slip length in thin polymer films confined between atomically smooth thermal surfaces.
Anoosheh Niavarani   +7 more
core   +3 more sources

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