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Flexural wave cloaking via embedded cylinders with systematically varying thicknesses
A. Colombi, P. Roux, S. Guenneau, and M. Rupin, “ Directional cloaking of flexural waves in a plate with a locally resonant metamaterial,” J. Acoust. Soc. Am. 137(4), 1783–1789 (2015).
D. Manen, M. Vasmel, S. Greenhalgh, and J. Robertsson, “ Broadband cloaking and holography with exact boundary conditions,” J. Acoust. Soc. Am. 137(6), 415–421 (2015).
J. Park, B. Park, D. Kim, and J. Park, “ Determination of effective mass density and modulus for resonant metamaterials,” J. Acoust. Soc. Am. 132(4), 2793–2799 (2012).
S. Cho, B. Kim, D. Min, and J. Park, “ Tunable two-dimensional acoustic meta-structure composed of funnel-shaped unit cells with multi-band negative acoustic property,” J. Appl. Phys. 118, 163103 (2015).
D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “ Metamaterial electromagnetic cloak at microwave frequencies,” Science 314, 977–980 (2006).
W. J. Parnell, A. N. Norris, and T. Shearer, “ Employing pre-stress to generate finite cloaks for antiplane elastic waves,” Appl. Phys. Lett. 100, 171907 (2012).
M. Brun, D. J. Colquitt, I. S. Jones, A. B. Movchan, and N. V. Movchan, “ Transformation cloaking and radial approximations for flexural waves in elastic plates,” New J. Phys. 16, 093020 (2014).
D. J. Colquitt, M. Brun, M. Gei, A. B. Movchan, N. V. Movchan, and I. S. Jones, “ Transformation elastodynamics and cloaking for flexural waves,” J. Mech. Phys. Sol. 72, 131–143 (2014).
A. Climente, D. Torrent, and J. Sánchez-Dehesa, “ Gradient index lenses for flexural waves based on thickness variations,” Appl. Phys. Lett. 105, 064101 (2014).
J. O'Neill, O. Selsil, R. C. McPhedran, A. B. Movchan, and N. V. Movchan, “ Active cloaking of inclusions for flexural waves in thin elastic plates,” Mech. Appl. Math. 68(3), 263–288 (2014).
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Simulations of flexural wave cloaking from multiple scattering events that are achieved by embedded cylinders in a thin plate are performed. Minimization of refraction is performed using small surrounding cylinders with varying thickness in radial and angular directions, respectively. The thickness variations render the effective wave speed lower in the radial direction and higher in the angular direction compared to the speed in the surrounding media, which results in the cloaking effect. In order to verify the feasibility of this approach, 15 layers of cylinders are placed around the blocked area. The multiple-scattering method is used to predict wave propagations and to take the interactions between cylinders into account. The effects of the thickness variation on the cloaking performance are analyzed. The results demonstrate that minimal scattering is achieved when the area of interest is surrounded by the thickness-varying cylinders.
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