Shape-adaptive metastructures with variable bandgap regions by 4D printing

R Noroozi, M Bodaghi, H Jafari, A Zolfagharian… - Polymers, 2020 - mdpi.com
This article shows how four-dimensional (4D) printing technology can engineer adaptive
metastructures that exploit resonating self-bending elements to filter vibrational and acoustic …

Multi-objective optimization of elastic metaplates for lightweight and ultrawide bandgaps

G Yan, Y Li, X Huang, S Yao, W Zhou - International Journal of Mechanical …, 2023 - Elsevier
There is inevitably a conflict between multiple objectives when designing elastic metaplates
(EMPs) with desirable functionalities from the perspective of practical applications. The non …

Propagation of elastic waves in metamaterial plates with various lattices for low-frequency vibration attenuation

G Yan, S Yao, Y Li - Journal of Sound and Vibration, 2022 - Elsevier
Elastic wave propagation characteristics of elastic metamaterial plates embedded scatterer
with various lattices are explored numerically and experimentally in this study, for the …

Bioinspired acoustic metamaterials: From natural designs to optimized structures

VF Dal Poggetto - Frontiers in Materials, 2023 - frontiersin.org
Artificial structures known as phononic crystals and acoustic metamaterials can be designed
by spatially arranging one or more materials to obtain desired wave manipulation …

Flexural wave band gaps in a ternary periodic metamaterial plate using the plane wave expansion method

VF Dal Poggetto, AL Serpa - Journal of Sound and Vibration, 2021 - Elsevier
Low-and mid-frequency range vibrations usually present issues in their insulation. The
development of periodic metamaterials (artificially engineered structures) has been …

Elastic wave band gaps in a three-dimensional periodic metamaterial using the plane wave expansion method

VF Dal Poggetto, AL Serpa - International Journal of Mechanical Sciences, 2020 - Elsevier
In this work, a novel Fourier series expansion is proposed for representing periodic three-
dimensional metamaterials consisting of spherical inclusions in a cubic lattice, which allows …

Tunable phononic bandgap materials designed via topology optimization

A Dalklint, M Wallin, K Bertoldi, D Tortorelli - Journal of the Mechanics and …, 2022 - Elsevier
Topology optimization is used to design phononic bandgap materials that are tunable by
mechanical deformation. A periodic media is considered, which due to the assumption of …

Tunable bandgaps and acoustic characteristics of perforated Miura-ori phononic structures

X Zhang, X Huang, G Lu - International Journal of Mechanical Sciences, 2023 - Elsevier
In this study, we introduce a novel perforated Miura-ori phononic structure (PMPS) and
investigate the tunability of complete bandgaps or partial bandgaps in specific directions …

Spiral-based phononic plates: From wave beaming to topological insulators

A Foehr, OR Bilal, SD Huber, C Daraio - Physical review letters, 2018 - APS
Phononic crystals and metamaterials can sculpt elastic waves, controlling their dispersion
using different mechanisms. These mechanisms are mostly Bragg scattering, local …

[HTML][HTML] Mechanical vibration bandgaps in surface-based lattices

W Elmadih, WP Syam, I Maskery, D Chronopoulos… - Additive …, 2019 - Elsevier
In this paper, the phonon dispersion curves of several surface-based lattices are examined,
and their energy transmission spectra, along with the corresponding bandgaps are …