Results 51 to 60 of about 15,942 (294)

Research Advance in Smart Metamaterials

open access: yesCailiao gongcheng, 2016
Metamaterials, man-made materials, enable us to design our own "atoms", and thereby to create materials with unprecedented effective properties that have not yet been found in nature.
YU Xiang-long, ZHOU Ji
doaj   +1 more source

Compliant curved-crease origami-inspired metamaterials with a programmable force-displacement response

open access: yesMaterials & Design, 2021
Origami-inspired metamaterials utilise geometric sheet transformations to generate and control novel material mechanical properties. The majority of research effort has been devoted to straight-crease origami-inspired metamaterials, however curved-crease
Ting-Uei Lee   +3 more
doaj   +1 more source

Compliant Metamaterials for Resonantly Enhanced Infrared Absorption Spectroscopy and Refractive Index Sensing [PDF]

open access: yes, 2011
Metamaterials can be designed to operate at frequencies from the visible to the mid-IR, making these structures useful for both refractive index sensing and surface-enhanced infrared absorption spectroscopy.
Atwater, Harry A.   +3 more
core   +1 more source

Snapping Mechanical Metamaterials under Tension [PDF]

open access: yesAdvanced Materials, 2015
We present a monolithic mechanical metamaterial comprising a periodic arrangement of snapping units with tunable tensile behavior. Under tension, the metamaterial undergoes a large extension caused by sequential snap-through instabilities, and exhibits a pattern switch from an undeformed wavy-shape to a diamond configuration.
Rafsanjani, Ahmad   +2 more
openaire   +4 more sources

What Do Large Language Models Know About Materials?

open access: yesAdvanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer   +2 more
wiley   +1 more source

Shape-matching soft mechanical metamaterials [PDF]

open access: yesScientific Reports, 2018
AbstractArchitectured materials with rationally designed geometries could be used to create mechanical metamaterials with unprecedented or rare properties and functionalities. Here, we introduce “shape-matching” metamaterials where the geometry of cellular structures comprising auxetic and conventional unit cells is designed so as to achieve a pre ...
Mirzaali, M. J.   +4 more
openaire   +4 more sources

Bioinspired Flexible and Programmable Negative Stiffness Mechanical Metamaterials

open access: yesAdvanced Intelligent Systems, 2023
Energy‐absorbing materials are widely used under certain high‐frequency scenarios, such as cargo packaging or sport protection. Though negative stiffness mechanical metamaterials have many distinctive advantages, fairly low strength and poor specific ...
Xiaojun Tan   +7 more
doaj   +1 more source

Electromechanically Tunable Metasurface Transmission Waveplate at Terahertz Frequencies

open access: yes, 2017
Dynamic polarization control of light is essential for numerous applications ranging from enhanced imaging to materials characterization and identification.
Averitt, Richard D.   +6 more
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

Oligomodal mechanical metamaterials

open access: yes, 2020
Mechanical metamaterials are artifical composites that exhibit a wide range of advanced functionalities such as negative Poisson's ratio, shape-shifting, topological protection, multistability, and enhanced energy dissipation. To date, most metamaterials have a single property, e.g.
Bossart, Aleksi   +3 more
openaire   +2 more sources

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