ANALYSIS OF WARM POWDER COMPACTION PROCESS USING FINITE ELEMENT MODEL
Keywords:
Warm compaction, finite element method, staggered-incremental-iterative.Abstract
This paper presents the development of the finite element model for the simulation of a full cycle of warm powder compaction process. In the modelling of compaction phase, the behaviour of powder is assumed to be rate independent thermo-elastoplastic material and the process has been described by a large displacement based finite element fo rmulation. Two constit utive relations namely Mohr-Coulomb yie ld criterion and Elliptical Cap yield criterion have been used to describe the mechanical behaviour of the powder during the compaction . The staggered-incremental-iterative solution strategy has been established to solve the non-linear systems of equations. The numerical results are validated by experiments, which show a good agreement between the simulation and experiment data.
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