A homogenization strategy for granular materials is presented and applied to a three-dimensional discrete element method (DEM), that uses superellipsoids as particles. Macroscopic quantities are derived from the microscopic quantities resulting from a DEM simulation by averaging over representative
Modeling of high-density compaction of granular materials by the Discrete Element Method
✍ Scribed by B. Harthong; J.-F. Jérier; P. Dorémus; D. Imbault; F.-V. Donzé
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 791 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0020-7683
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The discrete element method (DEM), based on a soft-sphere approach, is commonly used to simulate powder compaction. With these simulations a new macroscopic constitutive relation can be formulated. It is able to de-scribe accurately the constitutive material of powders during the cold compaction pro
## Abstract A succinct 3D discrete element model, with clumps to resemble the real shapes of granular materials, is developed. The quaternion method is introduced to transform the motion and force of a clump between local and global coordinates. The Hertz–Mindlin elastic contact force model, incorp
Finite element method (FEM) simulations of pharmaceutical tablet compaction using a Drucker-Prager Cap (DPC) model are presented in which material properties are relative density (solid fraction) dependent. Results from the solid fraction dependent model are compared to those from a constant propert
Wave propagation in granular materials is numerically studied through discrete element simulation. Two-dimensional (2-D) model material systems composed of large numbers of circular particles were numerically generated. The particles in these model materials were randomly distributed with a biasing