Seismic Waveguide of Metamaterials

Modern Physics Letters B (Impact Factor: 0.48). 02/2012; 26(17). DOI: 10.1142/S0217984912501059
Source: arXiv

ABSTRACT We have developed a new method of an earthquake-resistant design to support
conventional aseismic designs using acoustic metamaterials. We suggest a simple
and practical method to reduce the amplitude of a seismic wave exponentially.
Our device is an attenuator of a seismic wave. Constructing a cylindrical
shell-type waveguide that creates a stop-band for the seismic wave, we convert
the wave into an evanescent wave for some frequency range without touching the
building we want to protect.

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