The kinematics of self-similar plane penetration problems in Mohr-Coulomb granular materials

2005 ◽  
pp. 83-92 ◽  
Author(s):  
R. Butterfield
Keyword(s):  
Granular Materials ◽  
Self Similar

The role of self-organization during confined comminution of granular materials

2010 ◽  
Vol 368 (1910) ◽  
pp. 231-247 ◽  
Author(s):  
Oded Ben-Nun ◽  
Itai Einav
Keyword(s):  
Fractal Dimension ◽  
Granular Materials ◽  
Power Law ◽  
Self Organization ◽  
Self Organized ◽  
Self Organized Criticality ◽  
Self Similar ◽  
Discrete Element Simulations ◽  
Comprehensive Study

During confined comminution of granular materials a power-law grain size distribution (gsd) frequently evolves. We consider this power law as a hint for fractal topology if self-similar patterns appear across the scales. We demonstrate that this ultimate topology is mostly affected by the rules that define the self-organization of the fragment subunits, which agrees well with observations from simplistic models of cellular automata. There is, however, a major difference that highlights the novelty of the current work: here the conclusion is based on a comprehensive study using two-dimensional ‘crushable’ discrete-element simulations that do not neglect physical conservation laws. Motivated by the paradigm of self-organized criticality, we further demonstrate that in uniaxial compression the emerging ultimate fractal topology, as given by the fractal dimension, is generally insensitive to alteration of global index properties of initial porosity and initial gsd. Finally, we show that the fractal dimension in the confined crushing systems is approached irrespective of alteration of the criteria that define when particles crush.

Dissipation in granular materials

1998 ◽  
Vol 77 (5) ◽  
pp. 1413-1425 ◽  
Author(s):  
Dietrich E.Wolf, Farhang Radjai, Sabine Dipp
Keyword(s):  
Granular Materials

Self-similar collapse with non-radial motions

2006 ◽  
Vol 20 ◽  
pp. 1-4
Author(s):  
A. Nusser
Keyword(s):  
Self Similar

Mechanisms and kinetics of gravity separation of granular materials

2020 ◽  
Vol 63 (6) ◽  
pp. 545-561
Author(s):  
V N Dolgunin ◽  
A N Kudi ◽  
M A Tuev
Keyword(s):  
Granular Materials ◽  
Gravity Separation ◽  
Kinetics Of

Toward the Analysis of the Structure of Granular Materials

2013 ◽  
Vol 58 (1) ◽  
pp. 32-39
Author(s):  
O.I. Gerasymov ◽  
◽  
A.G. Zagorodny ◽  
M.M. Somov ◽  
◽  
...  
Keyword(s):  
Granular Materials
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