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    Saw-tooth waves in hysteretic media with a saturation of nonlinear losses

    2015, Vol. 11, No. 4, pp.  647–655

    Author(s): Nazarov V. E., Kiyashko S. B.

    On the basis of experimental data of the study of amplitude-dependent internal friction phenomena in polycrystalline solids the inelastic hysteretic state equation with a saturation of nonlinear losses is proposed. Theoretical analysis of the asymmetric saw-tooth waves propagation in such media is carried out. The regularities (amplitude dependent losses and changes in the propagation velocity) are determined for the characteristics of nonlinear wave and its higher harmonic amplitudes. The graphical analysis of form of the wave and evolution of its spectral components is carried out.
    Keywords: hysteresis, amplitude-dependent internal friction, saturation of nonlinear losses, sawtooth acoustic waves
    Citation: Nazarov V. E., Kiyashko S. B., Saw-tooth waves in hysteretic media with a saturation of nonlinear losses, Rus. J. Nonlin. Dyn., 2015, Vol. 11, No. 4, pp.  647–655
    DOI:10.20537/nd1504002


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