Computational rheology of core-shooting materials

Fabian Uhlig*, Rüdiger Schwarze, Stefan Luding

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    Shear cell simulations of the flow rheology of weakly wetted (a few volume percent liquid binders) particles are presented. The model involves spherical, poly-disperse particles with contact forces and a simple liquid bridge model, where the capillary bridges are isolated and the liquid assigned to a particle, which is assumed to be proportional to its surface, is equally distributed among all of its capillary bridges. Different liquid content and properties allows to predict the flow rheology when measuring shear strain and stress in a ring-shear cell. In this study, the focus is application in sand cores liquid binding materials.

    Original languageEnglish
    Title of host publicationECCOMAS 2012: European Congress on Computational Methods in Applied Sciences and Engineering
    Subtitle of host publicationFull papers, September 10-14, 2012, Vienna, Austria
    EditorsJosef Eberhardsteiner, Helmut J. Böhm, Franz G. Rammerstorfer
    PublisherFraunhofer Institut
    Pages4980-4989
    Number of pages10
    ISBN (Electronic)978-3-9502481-9-7
    ISBN (Print)978-3-9503537-0-9
    Publication statusPublished - 2012
    Event6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012 - Vienna, Austria
    Duration: 10 Sep 201214 Sep 2012
    Conference number: 6

    Conference

    Conference6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012
    Abbreviated titleECCOMAS
    CountryAustria
    CityVienna
    Period10/09/1214/09/12

    Keywords

    • DEM
    • Granular material
    • Liquid bridge
    • Micro-macro transition
    • Rheology
    • Wet contact

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