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http://hdl.handle.net/2122/13025| Authors: | Finocchio, G.* Casablanca, Orazio* Ricciardi, Giuseppe* Alibrandi, Umberto* Garesci, Francesca* Chiappini, Massimo* Azzerboni, Bruno* |
Title: | Seismic metamaterials based on isochronous mechanical oscillators | Journal: | Applied Physics Letters | Series/Report no.: | /104 (2014) | Issue Date: | 2014 | DOI: | 10.1063/1.4876961 | Abstract: | This Letter introduces a seismic metamaterial (SM) composed by a chain of mass-in-mass system able to filter the S-waves of an earthquake. We included the effect of the SM into the mono dimensional model for the soil response analysis. The SM modifies the soil behavior and in presence of an internal damping the amplitude of the soil amplification function is reduced also in a region near the resonance frequency. This SM can be realized by a continuous structure with inside a 3d-matrix of isochronous oscillators based on a sphere rolling over a cycloidal trajectory. |
| Appears in Collections: | Article published / in press |
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| APL_Metamateriali_2014.pdf | 1.43 MB | Adobe PDF |
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