Results 21 to 30 of about 3,013 (212)

In-plane compressive properties of assembled auxetic chiral honeycomb composed of slotted wave plate

open access: yesMaterials & Design, 2022
Auxetic metamaterials tend to be fabricated using additive manufacturing and laser cutting due to their special porous microstructures. Although the auxetic metamaterials have many applications currently, the high cost and the low efficiency of available
Yi Zhang   +6 more
doaj   +1 more source

Hard auxetic metamaterials

open access: yesExtreme Mechanics Letters, 2020
Auxetics are materials that contract laterally when compressed, rather than expand, in contrast to common experience. Here we show that common metals and plastics can be rendered auxetic through the introduction of a regular array of holes. Under compression, these hard holey materials bypass localized failure modes, such as shear banding, and instead ...
Finn Box   +2 more
openaire   +2 more sources

Additively Manufactured Hierarchical Auxetic Mechanical Metamaterials

open access: yesMaterials, 2022
Due to the ability to create structures with complex geometry at micro- and nanoscales, modern additive technologies make it possible to produce artificial materials (metamaterials) with properties different from those of conventional materials found in nature.
Ekaterina Mazur, Igor Shishkovsky
openaire   +2 more sources

Auxetic Granular Metamaterials

open access: yes, 2023
The flowing, jamming and avalanche behavior of granular materials is satisfyingly universal and vexingly hard to tune: a granular flow is typically intermittent and will irremediably jam if too confined. Here, we show that granular metamaterials made from particles with a negative Poisson's ratio yield more easily and flow more smoothly than ordinary ...
Haver, Daan   +5 more
openaire   +2 more sources

Experiments and parametric studies on 3D metallic auxetic metamaterials with tuneable mechanical properties [PDF]

open access: yes, 2015
Auxetic metamaterials are synthetic materials with microstructures engineered to achieve negative Poisson's ratios. Auxetic metamaterials are of great interest because of their unusual properties and various potential applications.
Ghaedizadeh, A   +4 more
core   +1 more source

Auxetic regions in large deformations of periodic frameworks [PDF]

open access: yes, 2018
In materials science, auxetic behavior refers to lateral widening upon stretching. We investigate the problem of finding domains of auxeticity in global deformation spaces of periodic frameworks.
CS Borcea   +17 more
core   +4 more sources

Mechanical behaviors of a novel auxetic honeycomb characterized by re-entrant combined-wall hierarchical substructures

open access: yesMaterials Research Express, 2022
The current focus of the metamaterials is to further improve their performance by the unit cell innovation, while for the auxetic metamaterials, the compromise between the mechanical properties and auxetic effect still needs more efforts.
Yang Zhou   +4 more
doaj   +1 more source

Superhydrophobicity of Auxetic Metamaterials

open access: yes, 2023
10 pages, 4 figures, 13 page supplementary ...
McHale, Glen   +9 more
openaire   +2 more sources

Mechanics of disordered auxetic metamaterials [PDF]

open access: yesThe European Physical Journal B, 2018
Auxetic materials are of great engineering interest not only because of their fascinating negative Poisson's ratio, but also due to their increased toughness and indentation resistance. These materials are typically synthesized polyester foams with a very heterogeneous structure, but the role of disorder in auxetic behavior is not fully understood ...
Alava Mikko   +3 more
openaire   +5 more sources

Design of multi-material isotropic auxetic microlattices with zero thermal expansion

open access: yesMaterials & Design, 2022
Auxetic metamaterials are a type of mechanical metamaterials possessing negative Poisson’s ratios and displaying counter-intuitive deformation behavior, which are useful for a range of potential applications.
Zuyu Li   +3 more
doaj   +1 more source

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