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Computational Mechanics
Published in: Computational Mechanics 6/2017

01-08-2017 | Original Paper

Accurate modelling of the elastic behavior of a continuum with the Discrete Element Method

Authors: M. A. Celigueta, S. Latorre, F. Arrufat, E. Oñate

Published in: Computational Mechanics | Issue 6/2017

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Abstract

The Discrete Element Method (DEM) has been used for modelling continua, like concrete or rocks. However, it requires a big calibration effort, even to capture just the linear elastic behavior of a continuum modelled via the classical force-displacement relationships at the contact interfaces between particles. In this work we propose a new way for computing the contact forces between discrete particles. The newly proposed forces take into account the surroundings of the contact, not just the contact itself. This brings in the missing terms that provide an accurate approximation to an elastic continuum, and avoids calibration of the DEM parameters for the purely linear elastic range.
previous article An ultra-accurate numerical method in the design of liquid phononic crystals with hard inclusion
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Appendix
Available only for authorised users
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Metadata
Title
Accurate modelling of the elastic behavior of a continuum with the Discrete Element Method
Authors
M. A. Celigueta
S. Latorre
F. Arrufat
E. Oñate
Publication date
01-08-2017
Publisher
Springer Berlin Heidelberg
Published in
Computational Mechanics / Issue 6/2017
Print ISSN: 0178-7675
Electronic ISSN: 1432-0924
DOI
https://doi.org/10.1007/s00466-017-1453-9

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