Isotacticity in chiral phononic crystals for low-frequency bandgap

W Ding, T Chen, D Yu, C Chen, R Zhang, J Zhu… - International Journal of …, 2024 - Elsevier
Realizing a low-frequency and broad bandgap is extremely challenging because the lattice
constant, equivalent stiffness, and equivalent density must be taken into account in practice …

Novel hybrid-controlled graded metamaterial beam for bandgap tuning and wave attenuation

Y Sun, Q Han, C Li - European Journal of Mechanics-A/Solids, 2024 - Elsevier
In this paper, a tunable functionally graded metamaterial beam is designed for flexural wave
attenuation by integrating piezomagnetic shunt dam** system and inertial amplification …

Description of bandgaps opening in chiral phononic crystals by analogy with Thomson scattering

W Ding, T Chen, C Chen, D Chronopoulos… - New Journal of …, 2023 - iopscience.iop.org
Chiral phononic crystals (PnCs) provide unique properties not offered by conventional
metamaterial based on classic Bragg scattering and local resonance. However, it is …

Sound transmission of truss-based X-shaped inertial amplification metamaterial double panels

Y Sun, G Zhang, HP Lee, H Zheng, Z Luo… - International Journal of …, 2024 - Elsevier
To enhance the low-frequency sound insulation performance of conventional double panels,
this work proposes a truss-based X-shape inertial amplification (TXIA) metamaterial double …

Broadband surface wave attenuation in porous soil by elastic metasurfaces

A Ni, Z Shi, Q Meng - International Journal of Mechanical Sciences, 2024 - Elsevier
To mitigate surface waves in ambient vibration, a novel broadband elastic metasurface is
proposed by periodically burying the layered in-filled pipes below the ground surface. The …

Low-frequency vibration attenuation of metamaterial sandwich plate with lever-type inertial amplified resonators

L Gao, CM Mak, C Cai - Thin-Walled Structures, 2024 - Elsevier
The utilization of sandwich plate structures is widespread across diverse engineering fields
owing to their advantageous high stiffness-to-weight ratio properties. However, these …

Three-dimensional ultra-wide elastic metamaterial with inertial amplification mechanisms having optimized flexure hinges

SN Otlu, B Acar, ZG Tetik, C Yilmaz - International Journal of Solids and …, 2023 - Elsevier
The aim of this paper is to obtain an ultra-wide low-frequency stop band in three dimensions
by using inertial amplification mechanisms. A two-stage remote center flexure mechanism …

Beam-type metastructure with X-shape inertial amplification mechanisms for vibration suppression

Y Sun, H Zheng, HP Lee - Thin-Walled Structures, 2023 - Elsevier
A new type of beam-type metastructure periodically attaching single-or multi-stage X-shape
inertial amplification (XIA) mechanisms is designed to realize efficient elastic wave …

Lever-type inertial amplification plates for low-frequency vibration reduction

C **, H Zheng, Y Mi, X Yu - Thin-Walled Structures, 2023 - Elsevier
In this work, a lever-type inertial amplification (LIA) metastructure is proposed to enhance the
vibration reduction capability of thin plates in the low-frequency range. The mechanism …

Engineered metagrating as shield from surface Rayleigh waves

W Liu, R Zheng - Mechanics of Advanced Materials and Structures, 2024 - Taylor & Francis
Rayleigh wave isolation using metamaterials is a research hotspot in the engineering
community, yet the development of relevant mitigation methods remains an open and …