Abstract
The effects of the nonlinear power dissipation on the strength and the position of the cold-work internal friction peaks associated with the oscillation of geometric kinks in the atmosphere of paraelastic interstitials have been investigated by the novel numerical study of the related mathematical macromodel. The present macroscopic model of internal friction is described by a second-order ordinary differential equation with a nonlinear Debye-type dissipative drag term. This system shows not only dissipative resonance behavior, but it also results in unusually sharp energy dissipations, like the Cherenkov radiation, when the kink velocity exceeds the Snoek jump velocity of interstitials at high external driving force amplitudes.
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