Employing pre-stress to generate finite cloaks for antiplane elastic waves

Details Employing pre-stress to generate finite cloaks for antiplane elastic waves Employing pre-stress to generate finite cloaks for antiplane elastic waves

2012-03-15

arxiv.org/abs/1203.3243v2

Appl. Phys. Lett., 100 171907, 2012

Physics

Classical Physics

4 pages, 2 figures

Scientific paper

10.1063/1.4704566

It is shown that nonlinear elastic pre-stress of neo-Hookean hyperelastic materials can be used as a mechanism to generate finite cloaks and thus render objects near-invisible to incoming antiplane elastic waves. This approach appears to negate the requirement for special cloaking metamaterials with inhomogeneous and anisotropic material properties in this case. These properties are induced naturally by virtue of the pre-stress. This appears to provide a mechanism for broadband cloaking since dispersive effects due to metamaterial microstructure will not arise.

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