[HTML][HTML] Wave attenuation in elastic metamaterial thick plates: Analytical, numerical and experimental investigations

EJP Miranda Jr, ED Nobrega, SF Rodrigues… - International Journal of …, 2020 - Elsevier
We investigate the complex band structure and forced response of flexural waves
propagating in an elastic metamaterial thick plate. Mindlin-Reissner thick plate theory is …

Achieving ultra-broadband and ultra-low-frequency surface wave bandgaps in seismic metamaterials through topology optimization

Z Liu, HW Dong, GL Yu, L Cheng - Composite Structures, 2022 - Elsevier
Achieving broadband low-frequency surface wave bandgaps is technically challenging,
which calls for a systematic design paradigm instead of intuitive approaches. In this study …

Broadband wave attenuation and topological transport in novel periodic pile barriers

A Ni, Z Shi - Engineering Structures, 2022 - Elsevier
Topological insulator (TI) has received enormous attention in recent years due to its
intriguing dynamic characterizes of topologically protected wave transport and defect …

Seismic vibrations attenuation via damped layered periodic foundations

Z Cheng, Z Shi, A Palermo, H Xiang, W Guo… - Engineering …, 2020 - Elsevier
In recent years, a new type of seismic isolation system which exploits the filtering effect of
bandgaps, named Periodic Foundation, has been proposed to isolate the upper structure …

Theory of Truncation Resonances in Continuum Rod‐Based Phononic Crystals with Generally Asymmetric Unit Cells

HB Al Ba'ba'a, CL Willey, VW Chen… - Advanced Theory …, 2023 - Wiley Online Library
Phononic crystals exhibit Bragg bandgaps, frequency regions within which wave
propagation is forbidden. In solid continua, bandgaps are the outcome of destructive …

Vibration mitigation in saturated soil by periodic pile barriers

L Meng, Z Cheng, Z Shi - Computers and Geotechnics, 2020 - Elsevier
Coupling the widely used Biot's theory and the periodic structure theory in the solid-state
physics, this paper presents a comprehensive numerical investigation on the complex …

Evanescent Bloch waves and complex band structure in magnetoelectroelastic phononic crystals

EJP Miranda Jr, JMC Dos Santos - Mechanical Systems and Signal …, 2018 - Elsevier
We investigate the complex band structure of elastic waves in a magnetoelectroelastic
phononic crystal, consisting of a polymeric matrix reinforced by BaTiO 3-CoFe 2 O 4 …

Broadband large-scale acoustic topological waveguides

Y Chen, X Wen, Y Lu, Z Lan, L Fan, HS Park, Z Gu… - Composite …, 2025 - Elsevier
The acoustic topological waveguide (ATW) hosting topologically protected waveguide
modes provides a unique opportunity for achieving large-scale sound transport with …

Multiband acoustic helical interface states in inverse-designed sonic crystals with glide symmetry

Y Chen, S An, Z Lan, L Fan, L An, Z Su - Composite Structures, 2024 - Elsevier
Acoustic topological insulators (ATIs) with topological states that are insensitive to defects
and impurities offer a robust way to steer acoustic waves. However, current ATIs in square …

Investigation of flexural wave band gaps in a locally resonant metamaterial with plate-like resonators

J Jung, S Goo, S Wang - Wave Motion, 2020 - Elsevier
This paper presents an investigation of flexural wave band gaps in locally resonant
metamaterials (LRMs). An LRM is a periodic structure consisting of repeated unit cells …