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Published on: August 5, 2013
Wave interaction in acoustic resonators with and without hysteresis
1Zel Technologies/University of Colorado, 325 Broadway, Boulder, Colorado, 80305, USA. lev.a.ostrovsky@noaa.gov
Abstract:
Nonlinear interaction of counterpropagating waves in solids is considered by using a general approach taking into account only the cumulative (resonant) nonlinear perturbations giving a nonzero contribution over the period and, consecutively, potentially able to significantly modify the linear solution. Different stress-strain relations are addressed, including those with hysteresis which serve as basic models for the recent acoustic experiments with rock and metals. An important case of the interaction of counterpropagating waves with close amplitudes in a high-Q resonator (bar) with hysteresis is specially addressed and compared with the case of a ring resonator.
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