⟨JAMMING TRANSITION⟩
Packing fraction φ
0.60
Particle count N
120
Stiffness k
50
Damping
0.12
REINITIALIZE
COMPRESS +0.02
φ:
-
Contacts Z:
-
Pressure P:
-
State:
-
Jamming transition
occurs at φ
J
≈ 0.64 (3D) / 0.84 (2D). Below: particles flow freely. Above: system jams — pressure P ~ (φ−φ_J)^α, contact number Z − Z_iso ~ (φ−φ_J)^½. This is a point J at T=0, σ=0, φ=φ_J in the jamming phase diagram.