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On the Influence of Material Parameters in a Complex Material Model for Powder Compaction
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). Sandvik Coromant AB, Sweden.
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-6232-8819
2016 (English)In: Journal of materials engineering and performance (Print), ISSN 1059-9495, E-ISSN 1544-1024, Vol. 25, no 10, 4408-4415 p.Article in journal (Refereed) Published
Abstract [en]

Parameters in a complex material model for powder compaction, based on a continuum mechanics approach, are evaluated using real insert geometries. The parameter sensitivity with respect to density and stress after compaction, pertinent to a wide range of geometries, is studied in order to investigate completeness and limitations of the material model. Finite element simulations with varied material parameters are used to build surrogate models for the sensitivity study. The conclusion from this analysis is that a simplification of the material model is relevant, especially for simple insert geometries. Parameters linked to anisotropy and the plastic strain evolution angle have a small impact on the final result.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 25, no 10, 4408-4415 p.
Keyword [en]
constitutive model, material characterization, powder compaction, real inserts, sensitivity analysis, Characterization, Compaction, Constitutive models, Continuum mechanics, Geometry, Complex materials, Finite element simulations, Material characterizations, Material modeling, Material parameter, Parameter sensitivities, Powder compactions, Sensitivity studies, Finite element method
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-195309DOI: 10.1007/s11665-016-2294-yISI: 000385404800033ScopusID: 2-s2.0-84983797997OAI: oai:DiVA.org:kth-195309DiVA: diva2:1045694
Note

QC 20161110

Available from: 2016-11-10 Created: 2016-11-02 Last updated: 2016-11-10Bibliographically approved

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Staf, HjalmarLarsson, Per-Lennart
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CiteExportLink to record
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