Stress dip under a two-dimensional semipile of grains
I Zuriguel1, T Mullin, R Arévalo
1Manchester Centre for Nonlinear Dynamics, University of Manchester, Manchester, United Kingdom. iker@fisica.unav.es
Abstract:
The origin of stress dip under the apex of a standard sandpile has stimulated significant debate within the scientific community. On the other hand, it could be argued that a semipile built against a vertical wall is of more practical interest since it serves as a model of dams, dykes, and embankments. There is surprisingly little information available for the stress distribution in this case. Here we show clear experimental evidence that the presence of the wall enhances the dip under a granular pile significantly. Our investigation provides insight into the influence of walls on the orientation of force chains and this appears to be key in enhancing the dip. Moreover, numerical simulations and experiments with different kinds of particles show that the vertical wall induces an alignment of isotropic particles.
More Related Videos
Related Concept Videos
Stress on an Oblique Plane
Stress: General Loading Conditions
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
Three-Dimensional Analysis of Strain
Elastic Strain Energy for Shearing Stresses
Two-Dimensional Force System
Fineness Modulus
Consider performing sieve analysis on sand through a set of ASTM sieves. The weight of aggregate retained in each sieve and pan placed at the bottom is recorded, as given in Column B of Table 1.
To determine the fineness modulus of...


