Compaction simulation is the modelling of granular matter when compressed into a dense state that is achieved through the reduction of the air void.
During the compaction process, if the loading pressure is increasing straightly, the powder assembly will experience three stages.
[1] DEM has enhanced rapidly our understanding of granular system by producing quantitative predictions rather than only qualitative description, increased our insight into particle assemblies by providing both microscopic and macroscopic information.
When the compact density reaches the set value, for example 0.75, the loading process stops and the plane goes up with the speed 5d/s.
In the recently research, periodical boundaries are used during the packing and compaction stages to exclude the effect of wall.