A Methodical Calibration Procedure for Discrete Element Models

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A review on the angle of repose of granular materials (2018, methodology): “The authors used digital image analysis techniques to analyze and obtain the coordinates of a surface profile of the pile slope, and a similar method was reported by Rackl and Hanley [63].”
An iterative Bayesian filtering framework for fast and automated calibration of DEM models (2019, background): “Note that it is also possible to leave dt as a free parameter to optimize, such that the computational cost is reduced to the largest extent for a given level of accuracy [19,73].”
Probabilistic calibration of discrete element simulations using the sequential quasi-Monte Carlo filter (2018, methodology): “Among a handful of systematic approaches to calibrating DEM models, the design of experiments (DOE) methods are efficient in searching for possible solutions in the multi-dimensional parameter space, with a manageable number of DEM simulations [18,24,39,54].”