Inverse modeling for parameter determination when using advanced material models to describe powder compaction
2010 (English)In: Proceedings of the World Powder Metallurgy Congress and Exhibition, World PM 2010, European Powder Metallurgy Association , 2010, Vol. 5, 77-84 p.Conference paper (Refereed)
In order to decrease the amount of experimental work at material characterization of powder mixtures, optimization procedures are often used. In the present study, characterization of WC/Co powders described by an advanced plasticity model is at issue. In particular, uniaxial die compaction is analyzed numerically in order to determine the correlation between material parameters, scalar and functional, and measurable information from experiments. Such information include radial (contact) pressure between powder and die walls, press force as function of indentation depth and frictional effects between powder and die walls. The commercial finite element solver LS-Dyna and the optimization module LS-OPT are used in the present investigation.
Place, publisher, year, edition, pages
European Powder Metallurgy Association , 2010. Vol. 5, 77-84 p.
Compaction, Inverse problems, Advanced materials, Finite element solver, Material characterizations, Material parameter, Optimization module, Optimization procedures, Parameter determination, Uniaxial die compaction
IdentifiersURN: urn:nbn:se:kth:diva-80872ScopusID: 2-s2.0-84902124511ISBN: 978-189907219-4OAI: oai:DiVA.org:kth-80872DiVA: diva2:496861
World Powder Metallurgy Congress and Exhibition, World PM 2010, Florence, Italy, 10 October 2010 through 14 October 2010
QC 201204242012-02-102012-02-102015-04-21Bibliographically approved