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An efficient finite/discrete element procedure for simulating compression of 3D particle assemblies
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmacy.
2008 (English)In: Computer methods in applied mechanics and engineering, ISSN 0045-7825, Vol. 197, no 49/50, 4266-4272 p.Article in journal (Refereed) Published
Abstract [en]

An efficient combined finite/discrete element procedure is developed, which is intended for simulating compression of 3D particle assemblies. Its main ingredients are an explicit solution scheme of the predictor–corrector type, an efficient two-stage contact detection algorithm, and physically stabilized elements that require only one integration point. The algorithm admits a straightforward parallelization, with a reasonable parallel efficiency. Our results indicate that realistic systems comprising 1000 or more particles may successfully be analyzed within a reasonable computation time (not more than about 10–15 h).However, the explicit solution scheme limits the applicability of the algorithm in its present form to systems of fairly soft particles, unless special procedures such as mass scaling are used to increase the critical time step.

Place, publisher, year, edition, pages
2008. Vol. 197, no 49/50, 4266-4272 p.
Keyword [en]
Powder, compression, pharmaceutical, simulation, combined finite/discrete element method
National Category
Pharmaceutical Sciences
URN: urn:nbn:se:uu:diva-100066DOI: 10.1016/j.cma.2008.05.002ISI: 000260764700015OAI: oai:DiVA.org:uu-100066DiVA: diva2:209338
Available from: 2009-03-24 Created: 2009-03-24 Last updated: 2016-05-13Bibliographically approved

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Frenning, Göran
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