• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

Strongly nonlinear transverse perturbations in phononic crystals

Abstract and Applied Analysis. 2014. Vol. 2014. No. Article ID 348920. P. 7 pages.
Pelinovsky E., Nikitenkova S.

The dynamics of the surface heterogeneities formation in low-dimensional phononic crystals is studied. It is shown that phononic transverse perturbations in this medium are highly nonlinear.They can be described with the help of the Riemann wave and may form stable wave structures of the finite amplitude.The Riemann wave deformation is described analytically. The Riemann wave time existence up to the beginning of the gradient catastrophe is calculated.