Tunable and active phononic crystals and metamaterials

YF Wang, YZ Wang, B Wu… - Applied …, 2020 - asmedigitalcollection.asme.org
Phononic crystals (PCs) and metamaterials (MMs) can exhibit abnormal properties, even far
beyond those found in nature, through artificial design of the topology or ordered structure of …

Phonon Engineering of Micro‐and Nanophononic Crystals and Acoustic Metamaterials: A Review

J Ma - Small Science, 2023 - Wiley Online Library
Phononic crystals (PnCs) and acoustic metamaterials (AMMs) are artificially architected
materials endowed with the capabilities of wave manipulation. This review specifically …

Tunable anti-plane wave bandgaps in 2D periodic hard-magnetic soft composites

S Padmanabhan, Z Alam, AK Sharma - International Journal of Mechanical …, 2024 - Elsevier
In this paper, we present a theoretical model for the analysis of large magneto-deformation
and the anti-plane shear wave bandgaps in 2D periodic two-phase hard magnetic soft …

Magnetically tunable longitudinal wave band gaps in hard-magnetic soft laminates

Z Alam, S Padmanabhan, AK Sharma - International Journal of Mechanical …, 2023 - Elsevier
Hard-magnetic soft materials belong to the class of active materials that undergo finite
deformation and alter their material properties when subjected to magnetic loading …

Topology optimization of soft compressible phononic laminates for widening the mechanically tunable band gaps

AK Sharma, MM Joglekar, DM Joglekar, Z Alam - Composite Structures, 2022 - Elsevier
Active tuning of frequency bandgaps has received significant attention in the recent past. To
this end, soft compressible phononic composites have indicated great promise owing to their …

Functionally Graded Soft Dielectric Elastomer Phononic Crystals: Finite Deformation, electro-elastic longitudinal waves, and band gaps tunability via electro …

Z Alam, AK Sharma - International Journal of Applied Mechanics, 2022 - World Scientific
Active tuning of elastic wave band gaps received significant attention in the recent past. To
this end, soft dielectric elastomers (DEs) have indicated great promise owing to their …

Geometrically nonlinear refined shell theories by Carrera Unified Formulation

B Wu, A Pagani, WQ Chen… - Mechanics of Advanced …, 2021 - Taylor & Francis
In this work, a unified formulation of full geometrically nonlinear refined shell theory is
developed for the accurate analysis of highly flexible shell structures. The tensor calculus is …

[HTML][HTML] Low-frequency tunable topological interface states in soft phononic crystal cylinders

Y Chen, B Wu, J Li, S Rudykh, W Chen - International Journal of …, 2021 - Elsevier
Topological phononic crystals have attracted intensive attention due to their peculiar
topologically protected interface or edge states. Their operating frequency, however, is …

Nonreciprocal magnetoacoustic waves in dipolar-coupled ferromagnetic bilayers

M Küß, M Heigl, L Flacke, A Hörner, M Weiler… - Physical Review …, 2021 - APS
We study the interaction of surface acoustic waves (SAWs) with spin waves (SWs) in a Co 40
Fe 40 B 20/Au/Ni 81 Fe 19 system composed of two ferromagnetic layers separated by a …

Wave manipulation in intelligent metamaterials: recent progress and prospects

B Wu, W Jiang, J Jiang, Z Zhao, Y Tang… - Advanced Functional …, 2024 - Wiley Online Library
Metamaterials (MMs), which include phononic crystals (PCs) as a particular type, exhibit
anomalous wave propagation properties through artificial design of topologies or lattice …