Experiments on Seismic Metamaterials: Molding Surface Waves

Stéphane Brulé 1 Emmanuel Javelaud 1 Stefan Enoch 2 Sébastien Guenneau 3
2 CLARTE - CLARTE
FRESNEL - Institut FRESNEL
3 EPSILON - EPSILON
FRESNEL - Institut FRESNEL
Abstract : Materials engineered at the micro- and nanometer scales have had a tremendous and lasting impact in photonics and phononics. At much larger scales, natural soils civil engineered at decimeter to meter scales may interact with seismic waves when the global properties of the medium are modified, or alternatively thanks to a seismic metamaterial constituted of a mesh of vertical empty inclusions bored in the initial soil. Here, we show the experimental results of a seismic test carried out using seismic waves generated by a monochromatic vibrocompaction probe. Measurements of the particles’ velocities show a modification of the seismic energy distribution in the presence of the metamaterial in agreement with numerical simulations using an approximate plate model. For complex natural materials such as soils, this large-scale experiment was needed to show the practical feasibility of seismic metamaterials and to stress their importance for applications in civil engineering. We anticipate this experiment to be a starting point for smart devices for anthropic and natural vibrations.
Document type :
Journal articles
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-01283599
Contributor : Sébastien Guenneau <>
Submitted on : Monday, November 26, 2018 - 3:46:33 PM
Last modification on : Monday, March 4, 2019 - 2:04:25 PM
Long-term archiving on : Wednesday, February 27, 2019 - 2:24:26 PM

File

PhysRevLett.112.133901.pdf
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Stéphane Brulé, Emmanuel Javelaud, Stefan Enoch, Sébastien Guenneau. Experiments on Seismic Metamaterials: Molding Surface Waves. Physical Review Letters, American Physical Society, 2014, 112 (13), pp.133901. ⟨10.1103/PhysRevLett.112.133901⟩. ⟨hal-01283599⟩

Share

Metrics

Record views

240

Files downloads

42