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Digital
Library of the European Council for Modelling
and Simulation |
Title: |
Coupling Finite And
Discrete Element Methods Using An Open Source And A Commercial Software |
Authors: |
Akos
Orosz, Kornel Tamas, Janos P. Radics, Peter T. Zwierczyk |
Published in: |
(2018). ECMS 2018
Proceedings Edited by: Lars Nolle, Alexandra Burger, Christoph Tholen, Jens
Werner, Jens Wellhausen European Council for Modeling and Simulation. doi: 10.7148/2018-0005 ISSN:
2522-2422 (ONLINE) ISSN:
2522-2414 (PRINT) ISSN:
2522-2430 (CD-ROM) 32nd European Conference on Modelling and
Simulation, Wilhelmshaven, Germany, May 22nd
– May 265h, 2018 |
Citation
format: |
Akos
Orosz, Kornel Tamas, Janos P. Radics, Peter T. Zwierczyk (2018). Coupling
Finite And Discrete Element Methods Using An Open Source And A Commercial
Software, ECMS 2018 Proceedings Edited by:
Lars Nolle, Alexandra Burger, Christoph Tholen, Jens Werner, Jens Wellhausen
European Council for Modeling and Simulation. doi:
10.7148/2018-0399 |
DOI: |
https://doi.org/10.7148/2018-0399 |
Abstract: |
There are many cases where mechanical engineering structures interact
with bulk materials, e.g. cultivating and mining machines. The tool of the machine has effect on the aggregate and vice versa.
The aggregate puts complex forces on the machines. These loads are usually
simplified and replaced with a mean, distributed force, which is the input of
further computations (e.g. finite element (FEM) simulations). This can be
done, because the difference between two different, but statically equivalent
loads becomes very small at sufficiently large distances from load. However,
near the area, where loads act, the results using the simplification are not
real, therefore finding the optimal tool design is difficult. The discrete element method (DEM) models the materials using particles
(elements) with independent translational and rotational degrees of freedom
and arising forces (interactions) between them. This allows the simulation
and tracking of each particle independently, which makes DEM ideal for
modelling bulk materials. The FEM is usually used for modelling continua. If
DEM is coupled with FEM, the result is a detailed stress distribution near
the loads. In the possession of the detailed stress state, the optimization
of the tool can be performed, and a better construction may be created. |
Full
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