Results 21 to 30 of about 15,942 (294)

Ultralight, ultrastiff mechanical metamaterials [PDF]

open access: yesScience, 2014
Microlattices make marvelous materials Framework or lattice structures can be remarkably strong despite their very low density. Using a very precise technique known as projection microstereolithography, Zheng et al. fabricated octet microlattices from polymers, metals, and ceramics.
Zheng, Xiaoyu   +12 more
openaire   +4 more sources

4D printed zero Poisson's ratio metamaterial with switching function of mechanical and vibration isolation performance

open access: yesMaterials & Design, 2020
The unusual properties of mechanical metamaterials are determined by the configuration of artificial periodic structures. However, the mechanical performance of conventional metamaterials is irreversible and cannot perceive and respond to the changes in ...
Kai Liu   +12 more
doaj   +1 more source

3D Auxetic Metamaterials with Elastically‐Stable Continuous Phase Transition

open access: yesAdvanced Science, 2022
In solid state physics, phase transitions can influence material functionality and alter their properties. In mechanical metamaterials, structural‐phase transitions can be achieved through instability or buckling of certain structural elements.
Lianchao Wang   +6 more
doaj   +1 more source

Transformable topological mechanical metamaterials [PDF]

open access: yesNature Communications, 2017
AbstractMechanical metamaterials are engineered materials whose structures give them novel mechanical properties, including negative Poisson’s ratios, negative compressibilities and phononic bandgaps. Of particular interest are systems near the point of mechanical instability, which recently have been shown to distribute force and motion in robust ways
D. Zeb Rocklin   +3 more
openaire   +4 more sources

Static non-reciprocity in mechanical metamaterials [PDF]

open access: yes, 2017
Reciprocity is a fundamental principle governing various physical systems, which ensures that the transfer function between any two points in space is identical, regardless of geometrical or material asymmetries.
Andrea Alù   +34 more
core   +5 more sources

Adjustable indentation and vibration isolation performances of nacre-like metamaterial

open access: yesInternational Journal of Smart and Nano Materials, 2023
Along with the living environment, organisms have evolved structures that adapt to specific environments and have better mechanical properties. Bioinspired materials learn from nature and improve their mechanical properties by imitating the structure of ...
Shushan Zhang   +7 more
doaj   +1 more source

Engineering zero modes in transformable mechanical metamaterials

open access: yesNature Communications, 2023
Reconfigurable elastic properties are essential for functional mechanical metamaterials. Here, the authors propose a 3D metamaterial with engineered zero modes, and experimentally demonstrate its transformability covering all seven extremal metamaterial ...
Zhou Hu   +6 more
doaj   +1 more source

Robust temporal pumping in a magneto-mechanical topological insulator

open access: yesNature Communications, 2020
A robust time-controlled energy pumping in a classical metamaterial remains to be achieved. Here, Grinberg et al. demonstrate a temporal topological pump that produces on-demand, robust transport of mechanical energy using a one-dimensional magneto ...
Inbar Hotzen Grinberg   +6 more
doaj   +1 more source

Programmable Mechanical Metamaterials

open access: yesPhysical Review Letters, 2014
4 pages, 5 figures Please visit the website for Supplemental Material (movies): https://www.physics.leidenuniv.nl/florijn ...
Florijn, H.C.B.   +2 more
openaire   +5 more sources

Bio‐Inspired Morphological Evolution of Metastructures with New Operation Modalities

open access: yesAdvanced Intelligent Systems, 2023
Harnessing the power of natural evolution for automated exploration of novel forms of metastructures is likely to be the next technological revolution of the material science. Herein, the principles of evolution into the metamaterial design and discovery
Qianyun Zhang   +6 more
doaj   +1 more source

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