Fig. 4:
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(a) Effective friction μeff of the granular material as a function of particle elongation from DEM simulations with spherocylinders with particle friction of μp=0.4, 0.2 and 0.1 [4]. (b) Shear torque as a function of grain aspect ratio obtained in laboratory experiments by quasistatic shearing of a granular material consisting of plastic (POM - Polyoxymethylene) ellipsoids [5].
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