Emergence of seismic metamaterials: Current state and future perspectives
Emergence of seismic metamaterials: Current state and future perspectives
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DOI：
10.1016/j.physleta.2019.126034
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发表时间：
2020-01-09
影响因子：
2.6
通讯作者：
Guenneau, Sebastien
中科院分区：
文献类型：
--
作者：
Brule, Stephane;Enoch, Stefan;Guenneau, Sebastien
随着电磁超材料的出现，波物理学研究人员将工程介质的概念转化为声学、弹性动力学和扩散过程。在弹动力学领域，过去十年出现了用于米级软土的地震超材料，并且已经在多孔土上进行了全面的实验测试。地震超材料诞生于土壤中，已经从埋在土壤中、建筑物地基周围或土壤-结构界面附近作为局部地震隔离器的调谐谐振器领域出现。树木森林被解释为地表谐振器，并创造了天然地震超材料。我们首先回顾了地震超材料方面取得的一些进展，并从有效介质理论的角度列出了哪些材料参数可以实现，哪些不能实现。我们设想未来将开发用于建筑物地基的大规模拉胀超材料、用于抗震保护的表面谐振器以及城市规模的类似超材料的转型城市生活。 (C) 2019 Elsevier B.V. 保留所有权利。
Following the advent of electromagnetic metamaterials, researchers working in wave physics have translated concepts of engineered media to acoustics, elastodynamics and diffusion processes. In elastodynamics, seismic metamaterials have emerged in the last decade for soft soils structured at the meter scale, and have been tested with full-scale experiments on holey soils. Born in the soil, seismic metamaterials have emerged from the field of tuned-resonators buried in the soil, around building's foundations or near the soil-structure interface as local seismic isolators. Forests of trees have been interpreted as above-surface resonators, and coined natural seismic metamaterials. We first review some advances made in seismic metamaterials and dress an inventory of which material parameters can be achieved and which cannot, from the effective medium theory perspective. We envision future developments of large scale auxetic metamaterials for building's foundations, above surface resonators for seismic protection and metamaterial-like transformed urbanism at the city scale. (C) 2019 Elsevier B.V. All rights reserved.