- Title
- Modeling the particle breakage by using combined DEM and SBFEM
- Creator
- Luo, Tao; Ooi, Ean Hin; Chan, Andrew; Fu, Shaojun
- Date
- 2017
- Type
- Text; Conference proceedings; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/154263
- Identifier
- vital:11096
- Identifier
-
https://doi.org/10.1007/978-981-10-1926-5_31
- Identifier
- ISBN:09308989 (ISSN); 9789811019258 (ISBN)
- Abstract
- A novel computational method is developed in this study through the coupling of the discrete element method (DEM) and the scaled boundary finite element method (SBFEM). The objective of the developed technique is to model the particle breakage phenomenon in granular materials. This method models individual grains as single star-convex arbitrary sided polygons. The DEM is used to resolve the dynamics of each grain whereas the SBFEM is used to determine its corresponding stress state after a DEM analysis. The flexibility of both the SBFEM and DEM enable the grains to be formulated on arbitrary sided polygons so that the morphology of each grain to be replicated using only a single polygon. Grain breakage condition is determined if the stress state in a polygon satisfies a mechanically driven criterion e.g. the Hoek-Brown criterion is used. Once the breakage condition is detected, the resulting grain is split into two separate polygons. The resulting new polygons are directly modelled by the DEM and SBFEM without any change to the formulation. The feasibility of the developed method is demonstrated using a numerical example. © Springer Science+Business Media Singapore 2017.; Springer Proceedings in Physics
- Publisher
- Springer Science and Business Media, LLC
- Relation
- 7th International Conference on Discrete Element Methods, DEM7 2016; Dalian, China; 1st-4th August 2016; published in Springer Proceedings in Physics Vol. 188, p. 281-288
- Rights
- Copyright © Springer Science+Business Media Singapore 2017.
- Rights
- This metadata is freely available under a CCO license
- Subject
- Bi-axial test; Discrete element method; Hoek-Brown failure criterion; Particle breakage; Scaled boundary finite element method; Two-dimensional polygons; Finite difference method; Geometry; Numerical methods; Particles (particulate matter); Axial tests; Grain breakage; Hoek Brown failure criterion; Hoek-brown criterion; Individual grains; Method model; Finite element method
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