INSTITUTO DE FISICA DE LIQUIDOS Y SISTEMAS BIOLOGICOS
Unidad Ejecutora - UE
Nonmonotonic reversible branch in four model granular beds subjected to vertical vibration
L. A. PUGNALONI; M. MIZRAHI; C. M. CARLEVARO; F. VERICAT
PHYSICAL REVIEW E - STATISTICAL PHYSICS, PLASMAS, FLUIDS AND RELATED INTERDISCIPLINARY TOPICS
The American Physical Society
Año: 2008 vol. 78 p. 513051 - 513057
We present results from four independent models of a granular assembly subjected to tapping. We ﬁnd that the steady-state packing fraction as a function of the tapping intensity is nonmonotonic. In particular, for high tapping intensities, we observe an increase of the packing fraction with tapping strength. This ﬁnding challenges the current understanding of compaction of granular media since the steady-state packing fraction is believed to decrease monotonically with increasing tapping intensity. We propose an explanation of our results based on the properties of the arches formed by the particles.