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EXPERIMENTAL INVESTIGATION ON SHAPE SEGREGATION OF 3D PRINTED PARTICLES USING A FT4 FREEMAN RHEOMETER
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  • Shishir Shekhar,
  • Joshua Tuohey ,
  • Gerald Pereira,
  • Karen Hapgood,
  • David Morton,
  • Paul Cleary
Shishir Shekhar
Deakin University Faculty of Science Engineering and Built Environment

Corresponding Author:shishirshekhar@deakin.edu.au

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Joshua Tuohey
Deakin University - Geelong Waurn Ponds Campus
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Gerald Pereira
CSIRO Clayton
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Karen Hapgood
Swinburne University of Technology
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David Morton
Deakin University - Geelong Waurn Ponds Campus
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Paul Cleary
CSIRO Clayton
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Abstract

This study examines how granular mixtures of differently shaped particles segregate in a Freeman (FT4) rheometer. The mixtures contained two sets of particles with varying shapes and relative sizes. While our main focus was on the effect of particle shape on segregation, we recognized that even slight differences in size could lead to segregation. We specifically investigated when particles of different shapes have the same effective size, exploring three cases: 1) the largest sphere within a cubic particle (inscribed sphere), 2) the smallest sphere enclosing a cubic particle (circumscribed sphere), and 3) a sphere and cube with equal volume. Our findings reveal that binary mixtures of cubical and spherical particles can significantly segregate radially in the bed. We propose that the primary mechanism for this radial segregation is percolation caused by radial centrifugal forces pushing the particles outward.
06 Jul 2023Submitted to AIChE Journal
14 Jul 2023Submission Checks Completed
14 Jul 2023Assigned to Editor
14 Jul 2023Review(s) Completed, Editorial Evaluation Pending
21 Jul 2023Reviewer(s) Assigned
20 Sep 2023Editorial Decision: Revise Major
18 Oct 20231st Revision Received
23 Oct 2023Submission Checks Completed
23 Oct 2023Assigned to Editor
23 Oct 2023Review(s) Completed, Editorial Evaluation Pending
26 Oct 2023Reviewer(s) Assigned