Showing papers by "Dov Levine published in 2004"
TL;DR: A solvable stochastic model inspired by granular gases for driven dissipative systems is introduced and it is demonstrated that fluctuation-dissipation relations hold, however, with an effective temperature differing from the effective temperature defined from the average energy.
Abstract: We introduce a solvable stochastic model inspired by granular gases for driven dissipative systems. We characterize far from equilibrium steady states of such systems through the non-Boltzmann energy distribution and compare different measures of effective temperatures. As an example we demonstrate that fluctuation-dissipation relations hold, however, with an effective temperature differing from the effective temperature defined from the average energy.
31 citations
TL;DR: Combining numerical and analytical calculations, it is shown that granular materials do not generally behave in an elasticlike manner; however, they may under specific conditions, which are elaborated.
Abstract: We study the effect of mergers in the force chain model describing the stress profile in static granular materials. Combining numerical and analytical calculations, we show that granular materials do not generally behave in an elasticlike manner; however, they may under specific conditions, which are elaborated. Nonelastic behavior resulting from the nonlinearity of the full force chain model is discussed.
1 citations