Numerical studies of nonlinear ultrasonic guided waves in uniform waveguides with arbitrary cross sections
نویسندگان
چکیده
منابع مشابه
Nonlinear guided waves and symmetry breaking in left-handed waveguides
We analyze nonlinear guided waves in a planar waveguide made of a left-handed material surrounded by a Kerr-like nonlinear dielectric, and predict that such a waveguide can support fast and slow symmetric and antisymmetric nonlinear modes. We study the symmetry breaking bifurcation and asymmetric modes in such a symmetric structure. The analysis of nonlinear dispersion properties of the guided ...
متن کاملNonlinear Ultrasonic Guided Waves for Microstructure Characterization of Hollow Cylinders
The issue of non-destructive characterization of material microstructure with respect to precursors to macroscale damage initiation is addressed. Ultrasonic guided waves are known to be sensitive to material nonlinearity, which is evident through the generation of higher harmonic modes. Thus, nonlinear guided waves have strong potential to identify precursors to macroscale damage and revolution...
متن کاملPredicting bone strength with ultrasonic guided waves
Recent bone quantitative ultrasound approaches exploit the multimode waveguide response of long bones for assessing properties such as cortical thickness and stiffness. Clinical applications remain, however, challenging, as the impact of soft tissue on guided waves characteristics is not fully understood yet. In particular, it must be clarified whether soft tissue must be incorporated in wavegu...
متن کاملOn guided waves in photonic crystal waveguides
The paper addresses the issue of existence of modes guided by linear defects in photonic crystals. Such modes can be created in spectral gaps of the bulk materials and are evanescent in the bulk.
متن کاملPlasmonic Coaxial Waveguides with Complex Shapes of Cross-Sections
In this paper, we describe waveguide properties of new optical waveguides made of noble metals and filled with glass and air. Such waveguides are coaxial cables and differ from a conventional coaxial in the shape of their central rods. Coaxial waveguide with annular and elliptic central rods are considered. Numerical simulations demonstrate that these waveguides, having nanosize cross-section, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: AIP Advances
سال: 2016
ISSN: 2158-3226
DOI: 10.1063/1.4959005