Influence of Particle Morphology on Angle of Repose Derived from Hopper Flow Tests Using 3D DEM Simulations
Document Type
Conference Proceeding
Publication Date
2-27-2025
Department
Department of Civil, Environmental, and Geospatial Engineering
Abstract
The angle of repose holds significant importance within granular systems, serving as a key indicator of material packing and flow behavior. In this work, we investigated the impact of particle morphology on the repose angle (AOR) using a series of numerical simulations and laboratory measurements. For the experiments, granular materials are first loaded into a hopper and then released to fall freely under gravity into a vessel positioned below, and the angle of repose of the resulting pile is measured. Numerical simulations used the bubble pack technique to create clumps of pebbles with varying shapes. The results show that the AOR is strongly influenced by the shape of the clumps used in the simulations, allowing for the use of fewer pebbles to efficiently replicate the behavior of irregular particle shapes. Notably, differences in repose angle values between hopper flow tests and cylinder pull-out tests emphasize the importance of test methods in evaluating particle flowability.
Publication Title
Geotechnical Frontiers 2025 Proceedings
Recommended Citation
Sandeep, C. S.,
Feng, R.,
Espinoza, J.,
Barry, M.,
&
Evans, T.
(2025).
Influence of Particle Morphology on Angle of Repose Derived from Hopper Flow Tests Using 3D DEM Simulations.
Geotechnical Frontiers 2025 Proceedings,
March(GSP 368), 527-534.
http://doi.org/10.1061/9780784486016.053
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p2/1550
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