Title: Polygon-based contact description for modeling arbitrary polyhedra in the Discrete Element Method
Authors: Smeets, Bart ×
Odenthal, Tim
Vanmaercke, Simon
Ramon, Herman #
Issue Date: 2015
Publisher: North-Holland Pub. Co.
Series Title: Computer Methods in Applied Mechanics and Engineering
Abstract: Many real-life applications of the Discrete Element Method (DEM) require a
particle description which accounts for irregular and arbitrary shapes. In this
work, a novel method is presented for calculating contact force interactions
between polyhedral particles. A contact between two polyhedra is decom-
posed as a set of contacts between individual polygonal facets. For each
polygon-polygon contact, an individual contact force is obtained by integrat-
ing a linear pressure over the area of its intersection. Both convex as well as
partially concave polyhedra can be accurately represented. The proposed al-
gorithm is validated by comparing to previously published experimental and
computational gravitational particle depositions of identical cubes. Finally,
the model is demonstrated in simulations of gravitational packing of various
other polyhedral shapes.
ISSN: 0045-7825
Publication status: accepted
KU Leuven publication type: IT
Appears in Collections:Mechanical Engineering - miscellaneous
Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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