An experimental study of the elastic rebound of spheres

By A. Kharaz, D. A. Gorham, A. Salman. 2001

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Energy absorption during compression and impact of dry elastic-plastic spherical granules (2010, unknown): “If the contact force exceeds the yield point, the coefficient of restitution can decrease with increasing impact velocity, which was shown in many experimental studies [21,23,46,64,86] and described with the models [73,94].”
Comparison of fibre optical measurements and discrete element simulations for the study of granulation in a spout fluidized bed (2009, methodology): “For this reason the collision properties of the particles as determined by Kharaz et al. [ 21 ] were used in the simulations.”
Collision modelling for the interface-resolved simulation of spherical particles in viscous fluids (2012, methodology): “The approach is similar to the one of Ladd (1997) who proposed to calculate the missing part of the hydrodynamic force using analytic expressions.”