NUMERICAL MODELING OF POWDER COMPACTION PROCESSES - DISPLACEMENT BASED FINITE-ELEMENT METHOD

The finite element method is used for simulating the compaction proces s of powders. Attention is focused on both the metal powders and ceram ics on which experiments have been conducted and test data made availa ble for comparison purposes. The implementation of advanced finite ele ment techniques such as adaptive remeshing and frictional interface el ements are briefly discussed. Macroscopic constitutive laws are presen ted on the basis of an elastoplastic approach in which the elastic reb ound, or springback, effect after compaction can be taken into conside ration. Two case studies are presented to demonstrate the validation o f the method.