Results 61 to 70 of about 27,257 (262)
A model for frictional sliding instability on a heterogeneous fault
An instability of frictional sliding driven by tectonic stress is assumed to be the source of earthquakes. Empirical slip laws indicate that, under constant ambient conditions, friction depends on time, slip rate and slip history.
A. Piombo, M. Dragoni
doaj +1 more source
Decomposition of Velocity Gradient into Interparticle Slip and Rolling
ABSTRACT Some of the best existing constitutive models for granular materials are based on the microkinematic assumption that the velocity gradient is a direct result of interparticle slip. For instance in the stress-dilatancy theory (Rowe, 1962, 1971) and in the double sliding, free rotating model (de Josselin de Jong, 1971, 1976, 1977 a, b) the ...
openaire +1 more source
Diffusion Slip Velocity: Theory and Experiment
Abstract A theoretical and experimental study of the phenomenon of diffusion slip in a binary gas mixture is presented. To provide some physical insight, a very general variational expression given earlier by Loyalka is rederived via the use of a method developed recently. The case of Maxwellian diffuse specular reflection is considered
H. Lang, S Loyalka
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Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé +9 more
wiley +1 more source
Effect of stick-slip on magneto-rheological elastomer with a magnetic field
This study investigated the stick-slip characteristics of a magneto-rheological elastomer (MRE) against an aluminum plate. Herein, the MRE was manufactured, and a stick-slip tester was employed to evaluate the stick-slip performance of the MRE under ...
Chenglong Lian +3 more
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A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
FEEDBACK BOUNDARY OF 4:1 ROUNDED CONTRACTION SLIP FLOW FOR OLDROYD-B FLUID BY FINITE ELEMENT [PDF]
The driven force feedback in viscoelastic flow is a technique to enforce converged solution of Oldroyd-B fluid on the basis of semi-implicit TaylorGalerkin finite element method for 4:1 contraction geometry with rounded corner meshes.
NAWALAX THONGJUB
doaj
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
Stick-slip is very harmful to the service life of drillstring. The extended Hamilton principle is applied in the paper. Then, finite element method (FEM) is employed to describe the model.
Baojin Wang, Zhongyang Wang, Fushen Ren
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Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source

