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Parameter Sensitivity at Advanced Constitutive Modeling of Powder Materials
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.), Hållfasthetslära (Avd.).
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.), Hållfasthetslära (Avd.).ORCID-id: 0000-0001-6232-8819
Sandvik Tooling AB, Sweden .
Sandvik Tooling AB.
2009 (engelsk)Inngår i: Proceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2009, European Powder Metallurgy Association (EPMA) , 2009, Vol. 3, s. 293-298Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Dry pressing powder compaction is analyzed using the finite element method (FEM) and in particular then the explicit commercial FEM program LS-DYNA. The aim is then to determine the sensitivity of mechanical local and global parameters with respect to different constitutive as well as geometrical variables. A very advanced constitutive description (not available as standard in commercial FEM packages but implemented into LS-DYNA for the present investigation) is used in the numerical analysis, Brandt and Nilsson [1], and the results are particularly helpful for a forthcoming inverse analysis where it is crucial, for reasons of efficiency, to reduce the number of variables in the optimization procedure aiming at a accurate description of the mechanical behavior of the powder material. It should be clearly stated that the geometrical parameters to be investigated include different possible press geometries to be used for experimental verification of the results.

sted, utgiver, år, opplag, sider
European Powder Metallurgy Association (EPMA) , 2009. Vol. 3, s. 293-298
Emneord [en]
Geometry, Experimental verification, Global parameters, Inverse analysis, Mechanical behavior, Optimization procedures, Parameter sensitivities, Powder compactions, Powder material
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Identifikatorer
URN: urn:nbn:se:kth:diva-80869Scopus ID: 2-s2.0-84902192045ISBN: 978-189907208-8 (tryckt)OAI: oai:DiVA.org:kth-80869DiVA, id: diva2:496854
Konferanse
Euro PM 2009 Congress and Exhibition, EPMA. Bella Congress Centre, Copenhagen, Denmark. October 12 - October 14 2009
Merknad

QC 20120502

Tilgjengelig fra: 2012-02-10 Laget: 2012-02-10 Sist oppdatert: 2015-04-20bibliografisk kontrollert

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