Anomalous density dependence of static friction in sand

Viktor K. Horváth, I. Jánosi, Péter J. Vella

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

We measured experimentally the static friction force Fs on the surface of a glass rod immersed in dry sand. We observed that Fs is extremely sensitive to the closeness of packing of grains. A linear increase of the grain density yields to an exponentially increasing friction force. We also report on the periodicity of Fs during gradual pulling out of the rod. Our observations demonstrate the central role of grain bridges and arches in the macroscopic properties of granular packings.

Original languageEnglish
Pages (from-to)2005-2009
Number of pages5
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume54
Issue number2
Publication statusPublished - 1996

Fingerprint

static friction
Density Dependence
sands
Anomalous
Friction
Packing
rods
arches
pulling
Arch
Periodicity
periodic variations
friction
glass
Demonstrate

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

Anomalous density dependence of static friction in sand. / Horváth, Viktor K.; Jánosi, I.; Vella, Péter J.

In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 54, No. 2, 1996, p. 2005-2009.

Research output: Contribution to journalArticle

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