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- W3147789762 abstract "It has long been recognized that the rotation of single particles plays a very important role in simulations of granular flow using the discrete element method(DEM).Many researchers have also pointed out that the effect of rolling resistance at the contact points should be taken into account in DEM simulations.However,even for the simplest case involving two-dimensional circular particles,there is no agreement on the best way to define rolling and sliding,and different definitions and calculations of rolling and sliding have been proposed.It has even been suggested that a unique rolling and sliding definition is not possible.In this paper we assess results from previous studies on rolling and sliding in discrete element models and find that some researchers have overlooked the effect of particles of different sizes.After considering the particle radius in the derivation of rolling velocity,all results reach the same outcome:a unique solution.We also present a clear and simple derivation and validate our result using cases of rolling.Such a decomposition of relative motion is objective,or independent of the reference frame in which the relative motion is measured." @default.
- W3147789762 created "2021-04-13" @default.
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- W3147789762 date "2015-01-01" @default.
- W3147789762 modified "2023-10-17" @default.
- W3147789762 title "Revisiting rolling and sliding in two-dimensional discrete element models" @default.
- W3147789762 hasPublicationYear "2015" @default.
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