title: Identification of arches in two-dimensional granular packings.
abstract: We identify arches in a bed of granular disks generated by a molecular dynamic-type simulation. We use the history of the deposition of the particles to identify the supporting contacts of each particle. Then, arches are defined as sets of mutually stable disks. Different packings generated through tapping are analyzed. The possibility of identifying arches from the static structure of a deposited bed, without any information on the history of the deposition, is discussed.
authors.affiliation: Departamento de Física, Facultad de Ciencias, University of Navarra, E-31080 Pamplona, Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: Arévalo
authors.forename: Diego
authors.initials: D
authors.lastname: Maza
authors.forename: Luis A
authors.initials: LA
authors.lastname: Pugnaloni