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Pattern dynamics of cohesive granular particles under a plane shear

We perform three dimensional molecular dynamics simulations of cohesive granular particles under a plane shear. From the simulations, we found that the granular temperature of the system abruptly decreases to zero after reaching the critical temperature, where the characteristic time $t_{\rm cl}$ is approximately represented by $t_{\rm cl} \propto (ζ-ζ_{\rm cr})^{-β}$ with the dissipation rate $ζ$, the critical dissipation rate $ζ_{\rm cr}$ and the exponent $β\simeq 0.8$. We also found that there exist a variety types of clusters depending on the initial density and the dissipation rate.