Calibration of the discrete element method: Strategies for spherical and non-spherical particles

The discrete element method (DEM) is a numerical tool used for the modelling of granular materials. However, accurate predictions of material behaviour can only be made if the input parameter values are carefully selected. Several laboratory experiments were used to measure the bulk behaviour of corn grains and then used to calibrate the parameter values using a number of different strategies for spherical (with rolling resistance) and...