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 …

Actively controllable topological phase transition in homogeneous piezoelectric rod system

W Zhou, B Wu, Z Chen, W Chen, CW Lim… - Journal of the Mechanics …, 2020 - Elsevier
By employing periodic electrical boundary conditions, an innovative method to generate
actively tunable topologically protected interface mode in a “homogeneous” piezoelectric …

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 …

New insights into topographically feature guided waves (FGW) propagation in non-uniform elastic waveguides

X Yu, R Qin, M Deng - Wave Motion, 2022 - Elsevier
Ultrasonic feature guided waves (FGW) have been found to exist in a variety of topographic
waveguides, such as welds, bends and stiffeners in plate-like structures. These FGWs are …

[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 …

[HTML][HTML] Magneto-deformation and transverse elastic waves in hard-magnetic soft laminates

Q Zhang, S Rudykh - Mechanics of Materials, 2022 - Elsevier
We study the magneto-mechanical behavior of periodic laminates made of hard-magnetic
active elastomers (HMAEs). We formulate the amended free-energy function for HMAEs, and …

[HTML][HTML] Effects of strain stiffening and electrostriction on tunable elastic waves in compressible dielectric elastomer laminates

Y Chen, B Wu, Y Su, W Chen - International Journal of Mechanical …, 2020 - Elsevier
This paper presents an electromechanical analysis of the nonlinear static response and the
superimposed small-amplitude wave characteristics in an infinite periodic compressible …

Microscopic and macroscopic instabilities in hyperelastic fiber composites

V Slesarenko, S Rudykh - Journal of the Mechanics and Physics of Solids, 2017 - Elsevier
In this paper, we study the interplay between macroscopic and microscopic instabilities in
3D periodic fiber reinforced composites undergoing large deformations. We employ the …

Comparative study of the flexoelectricity effect with a highly/weakly interface in distinct piezoelectric materials (PZT-2, PZT-4, PZT-5H, LiNbO3, BaTiO3)

A Singhal, H Mohammad Sedighi… - Waves in Random …, 2021 - Taylor & Francis
A comparative study of Love-type wave vibrations in a distinct piezoelectric (PE) material
thin film with a highly and weakly dielectric interface with an elastic pre-stressed elastic plate …