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Modelling and numerical simulation of powder die compaction with a particle code

: Coube, O.; Henrich, B.; Moseler, M.; Riedel, H.

Danninger, H. ; European Powder Metallurgy Association -EPMA-:
Euro PM 2004, Powder Metallurgy World Congress & Exhibition. Conference proceedings : Vienna, Austria, 17 - 21 October 2004
Shrewsbury: EPMA, 2004
ISBN: 1-89907-215-2
Powder Metallurgy World Congress & Exhibition <2004, Vienna>
Fraunhofer IWM ()
Drucker-Prager-Cap model; powder

While powder compaction has usually been described by continuum mechanics models like the Drucker-Prager-Cap model, it is now modelled by a self-developed particle dynamics code. The interaction forces between the grain-particles are derived from finite element models of grain-grain compression. The particle code uses an efficient parallelisation combined with a fast neighbour-list algorithm enabling the treatment of granular systems with about 40,000 grains. The code allows a flexible specification of spatial and temporal boundary conditions and therefore arbitrary dies and compression histories can be simulated.