Results 251 to 260 of about 7,280 (295)

Numerical Analysis of the Relationship between Friction Coefficient and Repose Angle of Blast Furnace Raw Materials by Discrete Element Method

Materials, 2022
In recent years, the discrete element method (DEM) has been widely used to study the factors affecting the repose angle and calibrate particle parameters for simulations.
Shiyu Wei, Han Wei, Henrik Saxén
exaly   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Relaxation at the Angle of Repose

Physical Review Letters, 1989
We have investigated the distribution of avalanches which occur when the slope of a sandpile exceeds the metastable slope given by the angle of repose. In contradiction to recent models by Bak, Tang, and Wiesenfeld for the dynamics of granular systems, we do not observe power-law distributions. We also find that the slope of a sandpile decays as $log(t)
, Jaeger, , Liu, , Nagel
openaire   +2 more sources

Angles of repose that exceed modern angles

Geology, 1990
Angles of repose for naturally occurring materials are known to be a function of, among other geologic parameters, the acceleration of gravity and cohesion between particles. Thus, steeper angles may have been recorded in ancient sediments because Earth9s acceleration of gravity was less than now.
C. John Mann, Sherman P. Kanagy II
openaire   +1 more source

Measurement of the Repose Angle of aTablet Granulation*

Journal of the American Pharmaceutical Association (Scientific ed.), 1955
In order to study the problem of granulation flow in tableting as it is related to interparticle friction, the response angle of a sulfathiazole granulation was studied as a function of average particle size, presence of lubricants, and admixture of fines.In general, the repose angle increased with decreasing particle size.Talc added to granules in ...
openaire   +2 more sources

The Distribution of Angle-of-Repose Data

Journal of Geoscience Education, 1998
Disinterested physical geology students can be enticed into performing an experiment that takes them though the scientific method and utilizes math skills if offered extra credit. The experiment causes students to compare the angle of repose of different substances, by measuring the heights and diameters of individual piles.
openaire   +1 more source

Angle of Repose of Snow on Solids

Nature, 1940
IT is well known that the friction of solids on snow surfaces is larger than on ice surfaces. The higher kinetic friction obtained on snow is attributed to the extra work done in displacing and compressing the snow crystals1. This may apply to the sliding of a ski or a sleigh on snow.
openaire   +1 more source

Geometric effect of angle of repose revisited

Granular Matter, 2014
We report on a universal pattern observed in the collapse dynamics of a sand heap. Collapse dynamics of a three-dimensional sand heap were studied through experiments and numerical simulations. A phenomenological law that describes the shape of a collapsed sand heap was found, we call this the geometric constitutive law of friction.
Miki Y. Matsuo, Daisuke Nishiura, Hide Sakaguchi   +2 more
openaire   +1 more source

Angle of repose and internal friction

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1966
Abstract The relation between angle of repose and angle of internal friction in a fragmented mass is discussed, and experiments with crushed rocks are reported. It is concluded that the angle of repose is not generally the angle of internal friction of the material in the pile, but of the same material in a more closely packed condition.
openaire   +1 more source

Study on the Angle of Repose of Nonuniform Sediment

Journal of Hydrodynamics, 2009
A conception of exposure degree is used in this article to account for the hiding and exposure mechanism of nonuniform sediment transport. The force arms of particles on the bed slope are assumed to be a function of the exposure degree, which is stochastically related to the size and gradation of bed materials. Based on this conception, the formula for
Feng-guang Yang, Xing-nian Liu, Ke-jun Yang, Shu-you Cao   +3 more
openaire   +1 more source

Angles of repose, angles of shearing resistance and angles of talus slopes

Earth Surface Processes, 1977
Recent arguments that the straight parts of talus slopes stand, in general, at angles less than the angle of repose of the talus material are considered in relation to different test procedures used in the measurement of the repose angle. Observations on coarse, well sorted, angular fragments showed no significant difference between the values for this
openaire   +1 more source