Open AccessA silo of which the pressure on the bottom of granular matter does not go to saturation
Author(s) -
Yimin Jiang,
Hao Zheng
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.7360
Subject(s) - silo , granular matter , saturation (graph theory) , information silo , bin , granular material , materials science , work (physics) , mechanics , stress (linguistics) , composite material , physics , thermodynamics , mathematics , mechanical engineering , engineering , combinatorics , linguistics , philosophy
As height increases a vertical granular column in a bin can transfer its weight the side wall gradually, then pressure at bottom ceases to increase with the height and reaches to saturation. However it is notable that not every granular column will stay in this stress status with saturation, known as the silo-effect. For example, when mechanical environments of the side wall are modified such that it is unable to take on the weight of granular matter, the bottom pressure will evidently increase linearly with the height. This work analyzes using the assumptions given by Janssen the behavior of this rather unusual granular column, which is in static mechanical equilibrium but does not have a stress saturation as in conventional silos.