97 citations
- National Aeronautics and Space AdministrationUS13 papers
- University of Central FloridaUS5 papers
- Embry–Riddle Aeronautical UniversityUS4 papers
- California Institute of TechnologyUS3 papers
- Center for Astrophysics Harvard & SmithsonianUS3 papers
- Florida Institute of TechnologyUS3 papers
- Johns Hopkins UniversityUS3 papers
- University of ArizonaUS3 papers
- University of Colorado BoulderUS3 papers
- Ames Research CenterUS2 papers
- Embry-Riddle Aeronautical University Daytona Beach Florida CampusUS2 papers
- Goddard Space Flight CenterUS2 papers
5 papers · 1 filter
Hyperstaticity and loops in frictional granular packings
Antoinette Tordesillas, Edward Lam, Philip T. Metzger
The hyperstatic nature of granular packings of perfectly rigid disks is analyzed algebraically and through numerical simulation. The elementary loops of grains emerge as a fundamen…
H theorem for contact forces in granular materials
Philip T. Metzger
A maximum entropy theorem is developed and tested for granular contact forces. Although it is idealized, describing two dimensional packings of round, rigid, frictionless, cohesion…
Elegance of disordered granular packings: a validation of Edwards' hypothesis
Philip T. Metzger, Carly M. Donahue
We have found a way to analyze Edwards' density of states for static granular packings in the special case of round, rigid, frictionless grains assuming constant coordination numbe…
Comment on "Mechanical analog of temperature for the description of force distribution in static granular packings"
Philip Metzger
It has been proposed by Ngan [Phys. Rev. E 68, 011301 (2003)] that the granular contact force distribution may be analytically derived by minimizing the analog of a thermodynamic f…
Granular contact force density of states and entropy in a modified Edwards ensemble
Philip Metzger
A method has been found to analyze Edwards' granular contact force probability functional for a special case. As a result, the granular contact force probability density functions…