Controlling elastic waves with isotropic materials

Zheng Chang; Jin Hu; Gengkai Hu; Ran Tao; Yue Wang

doi:10.1063/1.3569598

Controlling elastic waves with isotropic materials

Zheng Chang, Jin Hu^*, Gengkai Hu, Ran Tao, Yue Wang

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

Design of functional devices with isotropic materials has significant advantages, as regards easy fabrication and broadband application. In this letter, we present a method to derive isotropic transformation material parameters for elastodynamics under local conformal transformation. The transformed material parameters are then applied to design a beam bender, a four-beam antenna and an approximate carpet cloak for elastic wave with isotropic materials, validated by the numerical simulations.

Original language	English
Article number	121904
Journal	Applied Physics Letters
Volume	98
Issue number	12
DOIs	https://doi.org/10.1063/1.3569598
Publication status	Published - 21 Mar 2011

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Chang, Z., Hu, J., Hu, G., Tao, R., & Wang, Y. (2011). Controlling elastic waves with isotropic materials. Applied Physics Letters, 98(12), Article 121904. https://doi.org/10.1063/1.3569598

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AU - Tao, Ran

AU - Wang, Yue

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N2 - Design of functional devices with isotropic materials has significant advantages, as regards easy fabrication and broadband application. In this letter, we present a method to derive isotropic transformation material parameters for elastodynamics under local conformal transformation. The transformed material parameters are then applied to design a beam bender, a four-beam antenna and an approximate carpet cloak for elastic wave with isotropic materials, validated by the numerical simulations.

AB - Design of functional devices with isotropic materials has significant advantages, as regards easy fabrication and broadband application. In this letter, we present a method to derive isotropic transformation material parameters for elastodynamics under local conformal transformation. The transformed material parameters are then applied to design a beam bender, a four-beam antenna and an approximate carpet cloak for elastic wave with isotropic materials, validated by the numerical simulations.

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Controlling elastic waves with isotropic materials

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