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Compaction of Aggregated Ceramic Powders, Discrete Element and Finite Element Simulations
Pizette P.,Martin C. L.,Delette G. 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
In contrast with the Finite Element Method, the Discrete Element Method (DEM) takes explicitly into account the particulate nature of powders. DEM exhibits some drawbacks and many advantages. Simulations can be computationally expensive and they are only able to represent a volume element. However, these simulations have the great advantage of providing a wealth of information at the microstructural level. Here we demonstrate that the method is well suited for modelling, in coordination with FEM, the compaction of ceramic particles that have been aggregated. Aggregates of individual ceramic crystallites that are strongly bonded together are represented by porous spheres.