Collision dynamics of granular particles with adhesion

Nikolai V. Brilliantov, Nicole Albers, Frank Spahn, Thorsten Pöschel

Research output: Contribution to journalArticlepeer-review

136 Citations (Scopus)


We investigate the collision of adhesive viscoelastic spheres in quasistatic approximation where the adhesive interaction is described by the Johnson, Kendall, and Roberts (JKR) theory. The collision dynamics, based on the dynamic contact force, describes both restitutive collisions quantified by the coefficient of restitution ε as well as aggregative collisions, characterized by the critical aggregative impact velocity gcr. Both quantities ε and gcr depend sensitively on the impact velocity and particle size. Our results agree well with laboratory experiments.

Original languageEnglish
Article number051302
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number5
Publication statusPublished - 7 Nov 2007
Externally publishedYes


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