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Percolation and jamming transitions in particulate systems with and without cohesion
L Kovalcinova1, A Goullet1, L Kondic1
1Department of Mathematical Sciences, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, USA.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 15, 2015
Summary
Percolation and jamming transitions in compressed particulate systems are influenced by compression rate. These transitions coincide in quasistatic, repulsive-force systems but diverge with cohesion or slow dynamics.
Area of Science:
- Physics
- Materials Science
- Complex Systems
Background:
- Particulate systems exhibit complex behaviors under compression.
- Understanding percolation and jamming transitions is crucial for material design and behavior prediction.
Purpose of the Study:
- To investigate the relationship between percolation and jamming transitions in compressed particulate systems.
- To determine the influence of compression rate and inter-particle forces on these transitions.
Main Methods:
- Simulations of particulate systems with repulsive forces, friction, and viscous damping.
- Analysis of system behavior under varying compression rates, including quasistatic and dynamic regimes.
Main Results:
- Percolation and jamming transitions coincide in quasistatic systems with purely repulsive forces.
- Differences between transitions emerge in cohesive systems or under slow dynamics.
- Compression rate significantly influences both percolation and jamming phenomena.
Conclusions:
- The distinction between percolation and jamming is sensitive to system dynamics and inter-particle cohesion.
- Compression rate is a key parameter controlling transition behaviors in particulate matter.
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