Abstract
In this paper, a lattice type model is used to gain an insight into the mechanical behavior of granular media. In a two dimensional simulation, nodes are introduced at grain contacts and the nodes are linked by bars. An assembly of grains, is transformed into truss elements and the truss is then analyzed using finite element analysis. The areas of bars are derived by computing the displacements of an elastic disk under contact forces and then determining the bar areas that will give equivalent displacements in the direction of the bars. Bonding, debonding, sliding and rotation of particles are incorporated in this model. The lattice type model is applied on a loose and dense packing of disks. The two packings are subjected to an initial vertical load followed by a simple shear deformation. The results of numerical tests are in general agreement with the behavior of sands in laboratory simple shear tests.
| Original language | English (US) |
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| Pages | 713-716 |
| Number of pages | 4 |
| State | Published - 1996 |
| Event | Proceedings of the 1996 11th Conference on Engineering Mechanics. Part 1 (of 2) - Fort Lauderdale, FL, USA Duration: May 19 1996 → May 22 1996 |
Other
| Other | Proceedings of the 1996 11th Conference on Engineering Mechanics. Part 1 (of 2) |
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| City | Fort Lauderdale, FL, USA |
| Period | 5/19/96 → 5/22/96 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Architecture