DEM simulation of granular media-structure interface: Effects of surface roughness and particle shape. (English) Zbl 0939.74078
From the summary: We present an enhanced discrete element method (DEM) for numerical modelling of particulate media. This method models a particle of general shape by combining several smaller particles of simpler shape, such as a circle, into clusters that act as a single larger particle. The clusters more accurately model the geometry-dependent behaviour of the particles, such as particle interlock and resistance to rolling. The method is implemented within the framework of an existing DEM program without the introduction of new contact or force algorithms. An extensive set of numerical experiments demonstrates the effectiveness of the method.
MSC:
| 74S30 | Other numerical methods in solid mechanics (MSC2010) |
| 74E20 | Granularity |
Keywords:
interface shear test simulations; particle roughness; shear strength; discrete element method; particulate media; particle of general shape; clustersReferences:
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