Stick–Slip and the Transition to Steady Sliding in a 2D Granular Medium and a Fixed Particle Lattice

摘要: We report an experimental study of the stick–slip to steady sliding behavior a solid object pulled, via spring, across 2D granular substrates photoelastic disks that are either fixed in lattice (granular solid) or unconstrained, forming bed. observe progression friction regimes with increasing speed, including single-slip, double-slip, and mixed regimes, sliding, inertial oscillations. For case bed, we detailed analysis frictional for low speed regime, spring elastic energy dependencies during stick slip portions motion. solid, explore presence absence externally applied vibrations, compare it on which is intrinsically disordered. external vibration reduces transition values both single-slip double-slip transition. Moreover, effect packing disorder seems similar vibration-induced disorder, result that, our knowledge, has not been reported previously literature.