Details
| Original language | English |
|---|---|
| Title of host publication | Particle-Based Methods |
| Subtitle of host publication | Fundamentals and Applications |
| Editors | Roger Owen, Eugenio Oñate |
| Publisher | Springer Netherlands |
| Pages | 211-231 |
| Number of pages | 21 |
| ISBN (Print) | 9789400707344 |
| Publication status | Published - 2 Feb 2011 |
| Event | 1st InternationalConference on Particle-Based Methods, PARTICLES 2009 - Barcelona, Spain Duration: 25 Nov 2009 → 27 Nov 2009 |
Publication series
| Name | Computational Methods in Applied Sciences |
|---|---|
| Volume | 25 |
| ISSN (Print) | 1871-3033 |
Abstract
Within this contribution the mechanical behavior of dry frictional granular material is modeled by a three-dimensional discrete element method (DEM). The DEM uses a superquadric particle geometry which allows to vary the elongation and angularity of the particles and therefore enables a better representation of real grain shapes compared to standard spherical particles. To reduce computation times an efficient parallelization scheme is developed which is based on the Verlet list concept and the sorting of particles according to their spatial position. The macroscopic mechanical behavior of the particle model is analyzed through standard triaxial tests of periodic cubical samples. A technique to accurately apply stress boundary conditions is presented in detail. Finally, the triaxial tests are used to analyze the influence of the sample size and the particle shape on the resulting stress-strain behavior.
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Mathematics(all)
- Modelling and Simulation
- Engineering(all)
- Biomedical Engineering
- Computer Science(all)
- Computer Science Applications
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
- Mathematics(all)
- Computational Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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Particle-Based Methods: Fundamentals and Applications. ed. / Roger Owen; Eugenio Oñate. Springer Netherlands, 2011. p. 211-231 (Computational Methods in Applied Sciences; Vol. 25).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Homogenization of Granular Material Modeled by a 3D DEM
AU - Wellmann, C.
AU - Wriggers, P.
PY - 2011/2/2
Y1 - 2011/2/2
N2 - Within this contribution the mechanical behavior of dry frictional granular material is modeled by a three-dimensional discrete element method (DEM). The DEM uses a superquadric particle geometry which allows to vary the elongation and angularity of the particles and therefore enables a better representation of real grain shapes compared to standard spherical particles. To reduce computation times an efficient parallelization scheme is developed which is based on the Verlet list concept and the sorting of particles according to their spatial position. The macroscopic mechanical behavior of the particle model is analyzed through standard triaxial tests of periodic cubical samples. A technique to accurately apply stress boundary conditions is presented in detail. Finally, the triaxial tests are used to analyze the influence of the sample size and the particle shape on the resulting stress-strain behavior.
AB - Within this contribution the mechanical behavior of dry frictional granular material is modeled by a three-dimensional discrete element method (DEM). The DEM uses a superquadric particle geometry which allows to vary the elongation and angularity of the particles and therefore enables a better representation of real grain shapes compared to standard spherical particles. To reduce computation times an efficient parallelization scheme is developed which is based on the Verlet list concept and the sorting of particles according to their spatial position. The macroscopic mechanical behavior of the particle model is analyzed through standard triaxial tests of periodic cubical samples. A technique to accurately apply stress boundary conditions is presented in detail. Finally, the triaxial tests are used to analyze the influence of the sample size and the particle shape on the resulting stress-strain behavior.
UR - http://www.scopus.com/inward/record.url?scp=84964091572&partnerID=8YFLogxK
U2 - 10.1007/978-94-007-0735-1_8
DO - 10.1007/978-94-007-0735-1_8
M3 - Conference contribution
AN - SCOPUS:84964091572
SN - 9789400707344
T3 - Computational Methods in Applied Sciences
SP - 211
EP - 231
BT - Particle-Based Methods
A2 - Owen, Roger
A2 - Oñate, Eugenio
PB - Springer Netherlands
T2 - 1st InternationalConference on Particle-Based Methods, PARTICLES 2009
Y2 - 25 November 2009 through 27 November 2009
ER -