Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 353-380 |
| Seitenumfang | 28 |
| Fachzeitschrift | Computational Particle Mechanics |
| Jahrgang | 9 |
| Ausgabenummer | 2 |
| Frühes Online-Datum | 1 Juni 2021 |
| Publikationsstatus | Veröffentlicht - März 2022 |
Abstract
We present a version of the Discrete Element Method considering the particles as rigid polyhedra. The Principle of Virtual Work is employed as basis for a multibody dynamics model. Each particle surface is split into sub-regions, which are tracked for contact with other sub-regions of neighboring particles. Contact interactions are modeled pointwise, considering vertex-face, edge-edge, vertex-edge and vertex-vertex interactions. General polyhedra with triangular faces are considered as particles, permitting multiple pointwise interactions which are automatically detected along the model evolution. We propose a combined interface law composed of a penalty and a barrier approach, to fulfill the contact constraints. Numerical examples demonstrate that the model can handle normal and frictional contact effects in a robust manner. These include simulations of convex and non-convex particles, showing the potential of applicability to materials with complex shaped particles such as sand and railway ballast.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Numerische Mechanik
- Ingenieurwesen (insg.)
- Tief- und Ingenieurbau
- Mathematik (insg.)
- Numerische Mathematik
- Mathematik (insg.)
- Modellierung und Simulation
- Chemische Verfahrenstechnik (insg.)
- Fließ- und Transferprozesse von Flüssigkeiten
- Mathematik (insg.)
- Computational Mathematics
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Computational Particle Mechanics, Jahrgang 9, Nr. 2, 03.2022, S. 353-380.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Discrete element model for general polyhedra
AU - Neto, Alfredo Gay
AU - Wriggers, Peter
N1 - Funding Information: This study was financed by Alexander von Humboldt Foundation and in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001.
PY - 2022/3
Y1 - 2022/3
N2 - We present a version of the Discrete Element Method considering the particles as rigid polyhedra. The Principle of Virtual Work is employed as basis for a multibody dynamics model. Each particle surface is split into sub-regions, which are tracked for contact with other sub-regions of neighboring particles. Contact interactions are modeled pointwise, considering vertex-face, edge-edge, vertex-edge and vertex-vertex interactions. General polyhedra with triangular faces are considered as particles, permitting multiple pointwise interactions which are automatically detected along the model evolution. We propose a combined interface law composed of a penalty and a barrier approach, to fulfill the contact constraints. Numerical examples demonstrate that the model can handle normal and frictional contact effects in a robust manner. These include simulations of convex and non-convex particles, showing the potential of applicability to materials with complex shaped particles such as sand and railway ballast.
AB - We present a version of the Discrete Element Method considering the particles as rigid polyhedra. The Principle of Virtual Work is employed as basis for a multibody dynamics model. Each particle surface is split into sub-regions, which are tracked for contact with other sub-regions of neighboring particles. Contact interactions are modeled pointwise, considering vertex-face, edge-edge, vertex-edge and vertex-vertex interactions. General polyhedra with triangular faces are considered as particles, permitting multiple pointwise interactions which are automatically detected along the model evolution. We propose a combined interface law composed of a penalty and a barrier approach, to fulfill the contact constraints. Numerical examples demonstrate that the model can handle normal and frictional contact effects in a robust manner. These include simulations of convex and non-convex particles, showing the potential of applicability to materials with complex shaped particles such as sand and railway ballast.
KW - Barrier Method
KW - Discrete Element Method
KW - Master-master contact
KW - Non-convex
KW - Polyhedra
UR - http://www.scopus.com/inward/record.url?scp=85107560227&partnerID=8YFLogxK
U2 - 10.1007/s40571-021-00415-z
DO - 10.1007/s40571-021-00415-z
M3 - Article
AN - SCOPUS:85107560227
VL - 9
SP - 353
EP - 380
JO - Computational Particle Mechanics
JF - Computational Particle Mechanics
SN - 2196-4378
IS - 2
ER -