Elastic behavior of metal powders within compaction in Abaqus?

30 March 2014 1 2K Report

For modeling powder compaction, the best model seems to be the "Modified Drucker-Prager (Cap Plasticity)". What model is best suited for elastic behavior of powders? (Between elastic & porous elastic, the porous elastic is for materials containing voids, not powders. So just the elastic model remains. This model also needs Young's modulus & Poisson's ratio to be defined. My question is about how to determine these two elastic parameters?)

Amir Atrian

Young's modulus is a function of relative density which must be defined for ABAQUS using a subroutine (USDFLD)

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