Reconfigurable Elastic Metamaterials: Engineering Dispersion with Beyond Nearest Neighbors

被引：15

作者：

Chaplain, G. J. ^{[1
]}

Hooper, I. R. ^{[1
]}

Hibbins, A. P. ^{[1
]}

Starkey, T. A. ^{[1
]}

机构：

[1] Univ Exeter, Dept Phys & Astron, Ctr Metamaterial Res & Innovat, Exeter EX4 4QL, England

来源：

PHYSICAL REVIEW APPLIED | 2023年 / 19卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

NEGATIVE GROUP-VELOCITY; LAMB WAVES; REFRACTION;

D O I：

10.1103/PhysRevApplied.19.044061

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We design, simulate, and experimentally characterize a reconfigurable elastic metamaterial with beyond-nearest-neighbor (BNN) coupling. The structure is composed from the popular British model-construction system Meccano and supports backward waves with opposite directions of phase and group velocities. We experimentally verify three distinct configurations and acoustically infer their spatial vibration spectra.

引用

页数：9

共 62 条

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