Universal scaling laws for shear induced dilation in frictional granular media
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DOI: 10.1007/s10035-019-0890-x
Abstract: Compressed frictional granular matter cannot flow without dilation. Upon forced shearing to generate flow, the amount of dilation may depend on the initial preparation and a host of material variables. On the basis of both… read more here.
Keywords: amount dilation; dilation; scaling laws; frictional granular ... See more keywords
On inconsistency in frictional granular systems
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DOI: 10.1007/s40571-017-0160-9
Abstract: Numerical simulation of granular systems is often based on a discrete element method. The nonsmooth contact dynamics approach can be used to solve a broad range of granular problems, especially involving rigid bodies. However, difficulties… read more here.
Keywords: inconsistency frictional; granular systems; frictional granular;
An exact expression of three-body system for the complex shear modulus of frictional granular materials.
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DOI: 10.1039/d2sm01565j
Abstract: We propose a simple model comprising three particles to study the nonlinear mechanical response of jammed frictional granular materials under oscillatory shear. Owing to the introduction of the simple model, we obtain an exact analytical… read more here.
Keywords: system; shear modulus; granular materials; complex shear ... See more keywords
Diffusion in agitated frictional granular matter near the jamming transition.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.100.042902
Abstract: We study agitated frictional disks in two dimensions with the aim of developing a scaling theory for their diffusion over time. As a function of the area fraction ϕ and mean-square velocity fluctuations 〈v^{2}〉 the… read more here.
Keywords: agitated frictional; diffusion agitated; diffusion; mean square ... See more keywords
Flow-Arrest Transitions in Frictional Granular Matter.
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DOI: 10.1103/physrevlett.122.048003
Abstract: The transition between shear-flowing and shear-arrested states of frictional granular matter is studied using constant-stress discrete element simulations. By subjecting a dilute system of frictional grains to a constant external shear stress and pressure, friction-dependent… read more here.
Keywords: critical shear; friction; stress; frictional granular ... See more keywords