Elastodynamic transformation cloaking for non-centrosymmetric gradient solids

Sozio, Fabio; Golgoon, Ashkan; Yavari, Arash

doi:10.1007/s00033-021-01555-1

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…[22,23] TO can alter the propagation path of electromagnetic waves in real space via coordinate transformations, [24,25] which has been used to create various novel devices, including invisibility cloaks, where waves can take a detour around a cloaked area. Similarly, transformation elastic waves [26] can also be applied in vibration reducing, where elastic wave cloaks have been designed and verified both theoretically [27][28][29] and experimentally. [30][31][32][33][34] Other approaches, [35][36][37][38][39][40][41] including active devices, [35][36][37] have also been proposed for realizing elastic cloaks or vibration reduction.…”

Section: Introductionmentioning

confidence: 99%

Multiband Elastic Waveguide Cloak in Thin Plates

et al. 2023

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Vibration in thin plates is a common issue in structural engineering that can significantly impact the performance of structures. One crucial objective is to control vibration intensity. Metamaterials offer a promising solution to this challenge. Herein, a multiband elastic waveguide cloak that uses metamaterials and does not require active components or complex designs is introduced. By converting flexural waves to waveguide‐trapped waves, a cloaking region with negligible vibration can be created. Herein, independent mode conversion channels for elastic waves, which could lead to new approaches to modulating elastic waves, are discovered. The experiment results are in excellent agreement with the numerical simulation results and demonstrate a waveguide cloaking effect. This design has a compact structure and exhibits multiband performance, making it highly suitable for vibration control in various scenarios, including the aerospace industry, bridge engineering, and shock‐absorbing platforms.

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Section: Introductionmentioning

confidence: 99%

Multiband Elastic Waveguide Cloak in Thin Plates

et al. 2023

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“…The subsequent literature concerning prominent special cases is abundant (see, for example, recent results in references [7][8][9][10][11][12][13][14][15][16][17][18]). An open question is, however, whether we can have a unified view on material complexity.…”

Section: Introductionmentioning

confidence: 99%

Homogenization of Complex Lattices for Metamaterials: Open Problems and Conjectures

Mariano

2022

Crystals

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Based on concrete examples dealing with one-level periodic and quasi-periodic, and two-level periodic lattices, we show that the homogenization of complex lattices generically requires a multi-field continuum approach. We do not present results for specific cases, rather we discuss some related open problems and formulate pertinent conjectures. In this way, we suggest in essence a possible research program addressed towards the design of metamaterials.

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