Design of acoustic/elastic phase gradient metasurfaces: principles, functional elements, tunability, and coding

AL Chen, YS Wang, YF Wang… - Applied …, 2022 - asmedigitalcollection.asme.org
Acoustic/elastic metasurfaces as a kind of two-dimensional metamaterials are of
subwavelength thickness and show remarkable ability of acoustic/elastic wave …

Recent advances in non-traditional elastic wave manipulation by macroscopic artificial structures

J Park, D Lee, J Rho - Applied Sciences, 2020 - mdpi.com
Metamaterials are composed of arrays of subwavelength-sized artificial structures; these
architectures give rise to novel characteristics that can be exploited to manipulate …

Temperature-controlled elastic wave transport in topological ferroelectric phononic crystal plates

Z Chen, W Zhou - International Journal of Mechanical Sciences, 2023 - Elsevier
Thermally tunable elastic wave transport with controllable topological properties in a thin
plate is investigated. For the prior plate-type phononic crystals designed with passive …

An inverse design paradigm of multi-functional elastic metasurface via data-driven machine learning

W Zhou, S Wang, Q Wu, X Xu, X Huang, G Huang… - Materials & Design, 2023 - Elsevier
Elastic metasurfaces have become one of the most promising platforms for manipulating
mechanical wavefronts with the striking feature of ultra-thin geometry. The conventional …

Pillared elastic metasurface with constructive interference for flexural wave manipulation

L Cao, Z Yang, Y Xu, Z Chen, Y Zhu, SW Fan… - … Systems and Signal …, 2021 - Elsevier
In engineering, plate structures are one type of the main load-bearing structures. However,
most of the designed plate-like metamaterials/metasurfaces need to be heavily grooved or …

Deflecting flexural wave with high transmission by using pillared elastic metasurface

L Cao, Z Yang, Y Xu, B Assouar - Smart Materials and Structures, 2018 - iopscience.iop.org
This paper proposes an innovative and simple elastic metasurface, which is one kind of
ultrathin metamaterial, to abnormally deflect normally and obliquely incident flexural waves …

Asymmetric flexural wave transmission based on dual-layer elastic gradient metasurfaces

L Cao, Y Xu, B Assouar, Z Yang - Applied Physics Letters, 2018 - pubs.aip.org
Traditional asymmetric transmission of elastic waves is mostly based on mode conversion,
which presents a real challenge to get pure-mode elastic waves. In this letter, without the aid …

Nonlocal elastic metasurfaces: Enabling broadband wave control via intentional nonlocality

H Zhu, S Patnaik, TF Walsh… - Proceedings of the …, 2020 - National Acad Sciences
While elastic metasurfaces offer a remarkable and very effective approach to the
subwavelength control of stress waves, their use in practical applications is severely …

Arbitrary wavefront modulation utilizing an aperiodic elastic metasurface

ZL Xu, DF Wang, YF Shi, ZH Qian, B Assouar… - International Journal of …, 2023 - Elsevier
Metasurfaces have attracted much attention due to their much more compact configurations
and their abilities to modulate wavefronts of propagating waves by abruptly shifting their …

Tunable piezoelectric metasurface for manipulating multi-mode guided waves in plate

S Shao, R Xia, Z Li - Engineering Structures, 2022 - Elsevier
To control the propagation of multi-mode guided waves in plate is very significant in
nondestructive testing and structural health monitoring for identifying damage and detecting …