Experimental method for identifying constitutive parameters of rolling resistance between particles in discrete element method
نویسندگان
چکیده
Abstract A method to identify the parameters of rolling resistance between particles in discrete element is proposed this paper. Experiments revealed that a free particle would swing back and forth marginally before it stops. We assume restoring force mainly resistance. An optical experimental system was designed obtain DEM model. using time history curve proposed. measured angular displacement cylindrical samples made rubber aluminum. In addition, stiffness damping coefficients were identified. The identified applied model simulate process. results show time-history obtained by good agreement with curve. This verifies swings because can be determined
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ژورنال
عنوان ژورنال: Granular Matter
سال: 2021
ISSN: ['1434-5021', '1434-7636']
DOI: https://doi.org/10.1007/s10035-021-01113-6