Universal Approach for DEM Parameters Calibration of Bulk Materials

DEM parameters calibration is the most important step in preparing a model. At same time, lack of universal approach to complicates this process. The paper presents author’s creating based on physical meaning friction coefficients and conducting symmetrical experiments at full scale simulation, as well implementation form test rig. Several were carried out determine six material–boundary pairs. resulting adjusted using refinement experiment. results confirmed adequacy developed approach, its applicability various conditions. limitations both itself specific rig identified.