Perfectly matched layers for flexural waves in Kirchhof–Love plates
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2017.11.009
Abstract: Abstract We propose Perfectly Matched Layers (PMLs) for flexural waves in plate structures. The analytical model is based on transformation optics techniques applied to the biharmonic fourth-order partial differential equation describing flexural vibrations in Kirchhoff–Love… read more here.
Keywords: perfectly matched; flexural waves; matched layers; waves kirchhof ... See more keywords
Analysis of ray trajectories of flexural waves propagating over generalized acoustic black hole indentations
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.12.012
Abstract: Abstract An Acoustic Black Hole (ABH) indentation embedded in thin-walled structures has been proved remarkably useful for broadband flexural wave focalization, in which the phase velocity of the flexural waves and the refractive index of… read more here.
Keywords: flexural waves; black hole; acoustic black; ray trajectories ... See more keywords
A chirp excitation for focussing flexural waves
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2018.07.028
Abstract: Abstract In this paper, the dispersive nature of flexural waves is exploited to generate a shock response at an arbitrary location on a waveguide. The input waveform is an up-chirp whose instantaneous frequency is chosen… read more here.
Keywords: response; flexural waves; excitation; model ... See more keywords
Nonlinear transformation-based broadband cloaking for flexural waves in elastic thin plates
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2018.12.025
Abstract: Abstract Controlling and guiding elastic waves in solids is more complicated compared with electromagnetic and acoustic waves; design and fabrication of an elastic wave cloak with non-singular, homogeneous, and isotropic material parameters is a challenging… read more here.
Keywords: flexural waves; nonlinear transformation; waves elastic; cloak ... See more keywords
Deflecting incident flexural waves by nonresonant single-phase meta-slab with subunits of graded thicknesses
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2019.04.028
Abstract: Abstract We propose a nonresonant single-phase meta-slab with subunits of graded thicknesses for deflecting incident flexural waves. Analytic solutions of the transmission coefficient and the phase shift for the subunits are derived by the transfer… read more here.
Keywords: incident flexural; flexural waves; meta; meta slab ... See more keywords
Focusing Flexural Waves in Beams for Precisely Controlled Dynamic Fracture
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.10.044021
Abstract: We show that flexural waves can be focused in a beam to an extent that induces precisely controlled dynamic fracture of the beam. Flexural waves are excited at one end of a finite beam and… read more here.
Keywords: flexural waves; controlled dynamic; dynamic fracture; precisely controlled ... See more keywords
Experimental Demonstration of an Ultrabroadband Nonlinear Cloak for Flexural Waves.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.174301
Abstract: Broadband cloaking of flexural waves is a major challenge since the governing equation is not form invariant under coordinate transformations. We fabricate a flexural cloaking structure using only a single material composed of homogeneous and… read more here.
Keywords: flexural waves; nonlinear cloak; demonstration ultrabroadband; experimental demonstration ... See more keywords
Anisotropy Inversion in the Frequency Domain for Flexural Waves With Unmatched Sources
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2018.2852790
Abstract: Cross-dipole sonic logging is commonly used to obtain the azimuth anisotropy in the horizontal transverse isotropic formation. The current processing method proposed by Tang and Chunduru has been widely used for anisotropy inversion in the… read more here.
Keywords: flexural waves; inversion; method; anisotropy inversion ... See more keywords
Simultaneous anisotropy inversion and type identification in the frequency domain for flexural waves in horizontal transverse isotropic media
Sign Up to like & getrecommendations! Published in 2018 at "GEOPHYSICS"
DOI: 10.1190/geo2018-0139.1
Abstract: The anisotropy of elastic waves has been widely used to obtain information about the formation structure in geosciences research. The splitting of flexural waves is generally applied to evaluate anisotropy using geophysical inversion methods. However,… read more here.
Keywords: flexural waves; inversion; frequency; anisotropy inversion ... See more keywords
Beam splitting of flexural waves with a coding meta-slab
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Express"
DOI: 10.7567/1882-0786/ab36bd
Abstract: According to the generalized Snell's law, we provide an alternative way of beam splitting of flexural waves based on a proposed coding meta-slab. The coding meta-slab is composed of two logical units "0" and "1"… read more here.
Keywords: beam splitting; meta slab; coding meta; flexural waves ... See more keywords