Material parameters for a numerical simulation of a compaction process for sintered double-height gearsVerlak, Tomaž (Avtor) Šori, Marko (Avtor) Glodež, Srečko (Avtor) aluminum-based powdercompaction processDrucker-Prager cap modelnumerical simulationEcka Alumix 231This paper presents the initial material parameters for the Ecka Alumix 231 aluminum-powdered metal required for a successful numerical simulation of a compaction process for sintered components with a proper software package. Experimental work was used to obtain Drucker-Prager-cap (DPC) model material parameters with the help of a Brazilian disc test and a uniaxial compression test for the linear part of the DPC model in the equivalent pressure stress/deviatoric stress (p-q) plane. The specimens used for this test were cylindrical probes (greens) that were compacted with a mechanical press and then compressed to the failure point in the axial and radial directions.20152016-05-11 03:54:12Znanstveno delo59282sl