Details
| Original language | English |
|---|---|
| Pages (from-to) | 175-189 |
| Number of pages | 15 |
| Journal | Computational Particle Mechanics |
| Volume | 5 |
| Issue number | 2 |
| Publication status | Published - 24 May 2017 |
Abstract
In this paper, computational aspects of crushing/comminution of granular materials are addressed. For crushing, maximum tensile stress-based criterion is used. Crushing model in discrete element method (DEM) is prone to problems of mass conservation and reduction in critical time step. The first problem is addressed by using an iterative scheme which, depending on geometric voids, recovers mass of a particle. In addition, a global–local framework for DEM problem is proposed which tends to alleviate the local unstable motion of particles and increases the computational efficiency.
Keywords
- Crushing, Discrete element method, Global–local framework, Mass conservation
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Engineering(all)
- Civil and Structural Engineering
- Mathematics(all)
- Numerical Analysis
- Mathematics(all)
- Modelling and Simulation
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
- Mathematics(all)
- Computational Mathematics
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In: Computational Particle Mechanics, Vol. 5, No. 2, 24.05.2017, p. 175-189.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On the computational aspects of comminution in discrete element method
AU - Chaudry, Mohsin Ali
AU - Wriggers, Peter
N1 - Funding information: The support of the DFG (Deutsche Forschungs-gemeinschaft) under grant number WR 19/55-1 and DU 405/9-1 is gratefully acknowledged.
PY - 2017/5/24
Y1 - 2017/5/24
N2 - In this paper, computational aspects of crushing/comminution of granular materials are addressed. For crushing, maximum tensile stress-based criterion is used. Crushing model in discrete element method (DEM) is prone to problems of mass conservation and reduction in critical time step. The first problem is addressed by using an iterative scheme which, depending on geometric voids, recovers mass of a particle. In addition, a global–local framework for DEM problem is proposed which tends to alleviate the local unstable motion of particles and increases the computational efficiency.
AB - In this paper, computational aspects of crushing/comminution of granular materials are addressed. For crushing, maximum tensile stress-based criterion is used. Crushing model in discrete element method (DEM) is prone to problems of mass conservation and reduction in critical time step. The first problem is addressed by using an iterative scheme which, depending on geometric voids, recovers mass of a particle. In addition, a global–local framework for DEM problem is proposed which tends to alleviate the local unstable motion of particles and increases the computational efficiency.
KW - Crushing
KW - Discrete element method
KW - Global–local framework
KW - Mass conservation
UR - http://www.scopus.com/inward/record.url?scp=85044188516&partnerID=8YFLogxK
U2 - 10.1007/s40571-017-0161-8
DO - 10.1007/s40571-017-0161-8
M3 - Article
AN - SCOPUS:85044188516
VL - 5
SP - 175
EP - 189
JO - Computational Particle Mechanics
JF - Computational Particle Mechanics
SN - 2196-4378
IS - 2
ER -