Results 31 to 40 of about 5,461,887 (221)

Random Auxetic Porous Materials from Parametric Growth Processes [PDF]

open access: yes, 2021
International audienceWe introduce a computational approach to optimize random porous materials via parametric growth processes. We focus on the problem of minimizing the Poisson's ratio of a two-phase porous random material, which results in an auxetic ...
Martínez, Jonàs
core   +1 more source

Computational prediction of new auxetic materials [PDF]

open access: yesNature Communications, 2017
AbstractAuxetics comprise a rare family of materials that manifest negative Poisson’s ratio, which causes an expansion instead of contraction under tension. Most known homogeneously auxetic materials are porous foams or artificial macrostructures and there are few examples of inorganic materials that exhibit this behavior as polycrystalline solids.
Dagdelen, John   +3 more
openaire   +5 more sources

Auxetic Cellular Materials - a Review

open access: yesStrojniški vestnik – Journal of Mechanical Engineering, 2016
Auxetic cellular materials are modern materials which have some unique and superior mechanical properties. As a consequence of the structural deformation of their internal cellular structure they exhibit a negative Poisson’s ratio, i.e. they significantly increase in volume when stretched and vice versa. The effect of negative Poisson’s ratio is useful
Novak, Nejc, Ren, Zoran, Vesenjak, Matej
openaire   +2 more sources

Modeling of Shunted Piezoelectrics and Enhancement of Vibration Suppression through an Auxetic Interface

open access: yesMicromachines, 2023
In this study, a new technique is presented for enhancing the vibration suppression of shunted piezoelectrics by using an auxetic composite layer. Finite element models have been created to simulate the dynamic behavior of the piezoelectric composite ...
Maria-Styliani Daraki   +2 more
doaj   +1 more source

THE USE OF AUXETIC MATERIALS IN SMART STRUCTURES [PDF]

open access: yesComputational Methods in Science and Technology, 2004
Computational Methods in Science and ...
Hadjigeorgiou, E., Stavroulakis, G.
openaire   +2 more sources

Characterisation of cementitious polymer mortar – Auxetic foam composites [PDF]

open access: yes, 2017
Application of auxetic materials in automobile and biomedical engineering is widely reported and their usage in civil engineering is emerging. This paper reports the manufacturing and characterising of cementitious polymer mortar – auxetic foam ...
Manicka Dhanasekar   +3 more
core   +1 more source

Auxetic wrapped structures

open access: yes, 2021
Tato diplomová práce pojednává o auxetických textilních materiálech. Konkrétněji o auxetické přízi a vlastnostech podstatných pro její konstrukci. Jednou z těchto vlastností je tuhost jednotlivých komponentů příze.
Nováková, Tereza
core   +1 more source

Metamodelling for auxetic materials [PDF]

open access: yes, 2006
The use of Finite Element (FE) based homogenisation has improved the study of composite material properties. A homogenisation is a method of averaging a heterogeneous domain by using a replacement unit cell according to the proportions of constituents ...
Lew, Tze Ling
core   +5 more sources

Development and Characterization of Re-Entrant Auxetic Fibrous Structures for Application in Ballistic Composites [PDF]

open access: yes, 2018
Auxetic fibrous structures and composites with negative Poisson’s ratio (NPR) have huge potential for application in ballistic protection due to their high energy absorption and excellent impact resistance.
Gonçalves, Clara   +11 more
core   +1 more source

Mechanical responses of 3D cross-chiral auxetic materials under uniaxial compression

open access: yesMaterials & Design, 2020
Auxetic material is a metamaterial engineered to achieve negative Poisson's ratios through special design of microstructure. As a typical 3D auxetic material, 3D cross-chiral structures (CCS) possesses significant auxetic behavior and the mechanical ...
Qingsong Wang   +3 more
doaj   +1 more source

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