Results 91 to 100 of about 20,399 (241)

Tunable Mechanical Metamaterials [PDF]

, 2011
Abstract : We have established the feasibility of creating mechanical metamaterials over a broad range of frequencies. We have shown that it is possible to have stress waves with negative dynamic effective modulus of elasticity or negative dynamic effective density within various windows of frequencies.
openaire   +1 more source

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

Advanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Design and macroscopic mechanical responses of auxetic metamaterials with tunable stiffness

Materials & Design
This research presents the design, manufacturing, and macroscopic characterization of flexible mechanical metamaterials with tunable elastic properties. The elastic constants were given using the energy principle and Castigliano's second theorem, and the
Shangbin Wang, Junxian Guo, Andras Biczo, Ning Feng   +3 more
doaj   +1 more source

Sustainable Solutions in Sound Shielding: Harnessing Metamaterials for Acoustic Cloaking [PDF]

E3S Web of Conferences
The development of metamaterials promises to enable smallscale, worldwide industry-wide acoustic, electromagnetic, mechanical, and solar energy harvesting.
Singh Thapa Devendra, Najah Zahraa, Khosla Vivek, Ravinder Rathod, B Swathi, Nagpal Amandeep, Cheeli Ashok Kumar   +6 more
doaj   +1 more source

Effect of Thermal and Mechanical Deformation of Metamaterial FDM Components [PDF]

, 2009
At Lancaster University, research is currently investigating the use of rapid manufacturing (RM) to realise metamaterials, although key to the success of this project is the development of an understanding of how coated RM parts deform under thermal and ...
Celik, H Kursat, Rennie, Allan, Seviour, Rebecca, Tan, Yap   +3 more
core  

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

Advanced Functional Materials, EarlyView.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi, Adam D. Alfieri, Wangleong Chen, Deep Jariwala   +3 more
wiley   +1 more source

Hybrid mechanical metamaterials: Advances of multi-functional mechanical metamaterials with simultaneous static and dynamic properties

Heliyon
Mechanical metamaterials are architected structures with unique functionalities, such as negative Poisson's ratio and negative stiffness, which are widely employed for absorbing energy of quasi-static and impact loads, giving improved mechanical response.
Ana Carolina Azevedo Vasconcelos, Dingena Schott, Jovana Jovanova   +2 more
doaj   +1 more source

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

Advanced Functional Materials, EarlyView.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang, Jiwon Ryu, Dae‐Hee Cho, YoungHoi Cho, Yewon Hwang, Haram Lee, Dong Hoe Kim, Byeong‐Kwon Ju, Seok Chung, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Gabseok Seo, Phillip Lee   +15 more
wiley   +1 more source

Relaxed micromorphic model of transient wave propagation in anisotropic band-gap metastructures

, 2018
In this paper, we show that the transient waveforms arising from several localised pulses in a micro-structured material can be reproduced by a corresponding generalised continuum of the relaxed micromorphic type.
Aivaliotis, Alexios, Barbagallo, Gabriele, D'Agostino, Marco Valerio, Madeo, Angela, Neff, Patrizio, Tallarico, Domenico   +5 more
core   +3 more sources

Nonlocal Conduction in a Metawire

Advanced Materials, Volume 37, Issue 13, April 2, 2025.
A 1D metawire composed of twisted copper wires is designed and realized. This metamaterial exhibits pronounced effects of nonlocal electric conduction according to Ohm's law. The current at one location not only depends on the electric field at that location but also on other locations.
Julio Andrés Iglesias Martínez, Yi Chen, Ke Wang, Martin Wegener   +3 more
wiley   +1 more source