Journal ArticleDOI
Contact parameter estimation for DEM simulation of iron ore pellet handling
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TLDR
In this article, the use of tests conducted with single pellets for estimating material and contact parameters that are required in DEM simulations using the no-slip Hertz-Mindlin model is analyzed.About:
This article is published in Powder Technology.The article was published on 2013-11-01. It has received 197 citations till now. The article focuses on the topics: Discrete element method.read more
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A review on the angle of repose of granular materials
TL;DR: In this paper, an extensive review about the angle of repose angle theory, its definitions, method of measurements, appropriate applications and the influencing factors are presented. But, the authors do not consider the effect of the inter-particle properties of granular materials.
Journal ArticleDOI
Discrete element models for non-spherical particle systems: From theoretical developments to applications
TL;DR: In this paper, a review of recent developments in the discrete element method (DEM) to model particles of non-spherical shape is presented, including shape representation, algorithms for the efficient detection of contacts and the determination of contact parameters.
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Review: Calibration of the discrete element method
TL;DR: In this article, a review of the different approaches as found in literature over the last 25 years is critically reviewed and the calibration of specific parameters discussed, with the aim to work towards a more standardised and validated approach.
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Calibration of the discrete element method and the effect of particle shape
TL;DR: In this article, a calibration process is proposed to calibrate the parameter values for crushed rock particles up to 40 mm in size using a large shear box with a diameter of 590 mm.
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Calibration of the discrete element method: Strategies for spherical and non-spherical particles
TL;DR: In this paper, the authors used the discrete element method (DEM) for the modeling of granular materials and found that the drawdown test alone was sufficient to calibrate the coefficients of sliding and rolling friction, this was confirmed by the results from the rotating drum and shear tests.
References
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Journal ArticleDOI
Discrete particle simulation of particulate systems: A review of major applications and findings
TL;DR: Zhu et al. as discussed by the authors provided a summary of the studies based on discrete particle simulation in the past two decades or so, with emphasis on the microdynamics including packing/flow structure and particle-particle, particle-fluid and particle wall interaction forces.
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Poisson's ratio values for rocks
TL;DR: In this paper, the effects of Poisson's ratio in the elastic deformation of materials, intact rocks, and rock masses are briefly reviewed, and the reported values of POI for some elements, materials, and minerals are compiled while typical ranges of values are presented for some rocks and granular soils.
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Single-particle fracture under impact loading
Luís Marcelo Tavares,R.P. King +1 more
TL;DR: In this article, the Ultrafast Load Cell (UFLC) was used to investigate the deformation and fracture of single particles subject to impact and the theoretical background of the measurements is presented in detail.
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Predicting charge motion, power draw, segregation and wear in ball mills using discrete element methods
TL;DR: In this article, a model of a S m diameter ball mill is presented and the charge behaviour, torque and power draw are analyzed for a range of rotation rates from SO to 130% of the critical speed.
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An investigation of the comparative behaviour of alternative contact force models during elastic collisions
TL;DR: In this paper, the authors compared both viscous dissipation and plastic dissipation models for an inelastic sphere obliquely impacting a target wall for a range of normal coefficients of restitution.