Seismic Waveguide of Metamaterials

Modern Physics Letters B (Impact Factor: 0.75). 02/2012; 26(17). DOI: 10.1142/S0217984912501059
Source: arXiv


We developed a new method of an earthquake-resistant design to support conventional aseismic system using acoustic metamaterials. The device is an attenuator of a seismic wave that reduces the amplitude of the wave exponentially. Constructing a cylindrical shell-type waveguide composed of many Helmholtz resonators that creates a stop-band for the seismic frequency range, we convert the seismic wave into an attenuated one without touching the building that we want to protect. It is a mechanical way to convert the seismic energy into sound and heat.

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Available from: Mukunda Das, May 21, 2015
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    • "Finally, we would like to mention in passing that our study may find important applications in seismic metamaterials (cf. [10] [34] [35] [45]) to construct feasible devices for protecting key structures from the catastrophic destruction of natural earthquake waves or terrorist attacks (e.g., nuclear blast). For instance, the elastic invisibility cloak could be of great significance in safeguarding nuclear power plants, electric pylons, oil refineries , nuclear reactors and old or fragile monuments as well as the important components within them. "
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