Normal and shear behaviours of the auxetic metamaterials: homogenisation and experimental approaches

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F19%3A00007251" target="_blank" >RIV/46747885:24210/19:00007251 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/19:00007251 RIV/46747885:24410/19:00007251 RIV/46747885:24620/19:00007251

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11012-019-01000-8" target="_blank" >https://link.springer.com/article/10.1007/s11012-019-01000-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11012-019-01000-8" target="_blank" >10.1007/s11012-019-01000-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Normal and shear behaviours of the auxetic metamaterials: homogenisation and experimental approaches

Popis výsledku v původním jazyce

The auxetic metamaterials exhibit attractive mechanical properties, including negative Poisson’s ratio and compressional resistance. Although auxetic metamaterials have been extensively investigated using experimental and computational approaches, the consistent estimation of shear properties has still not been clarified. According to Cauchy elasticity, the shear properties of an auxetic structure should be enhanced owing to the negative Poisson’s ratio. However, this study used homogenisation and experimental approaches to demonstrate that the shear elasticity is highly non-linear with respect to the characteristic geometrical parameters of a unit cell and that shear properties, particularly normal elasticity, are not always improved. Furthermore, the estimation of the shear elasticity based on the classical isotropic continuum elasticity relations can result in misleading values and should be avoided.

Název v anglickém jazyce

Normal and shear behaviours of the auxetic metamaterials: homogenisation and experimental approaches

Popis výsledku anglicky

The auxetic metamaterials exhibit attractive mechanical properties, including negative Poisson’s ratio and compressional resistance. Although auxetic metamaterials have been extensively investigated using experimental and computational approaches, the consistent estimation of shear properties has still not been clarified. According to Cauchy elasticity, the shear properties of an auxetic structure should be enhanced owing to the negative Poisson’s ratio. However, this study used homogenisation and experimental approaches to demonstrate that the shear elasticity is highly non-linear with respect to the characteristic geometrical parameters of a unit cell and that shear properties, particularly normal elasticity, are not always improved. Furthermore, the estimation of the shear elasticity based on the classical isotropic continuum elasticity relations can result in misleading values and should be avoided.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybridní materiály pro hierarchické struktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Meccanica

ISSN

0025-6455

e-ISSN

—

Svazek periodika

54

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

831-839

Kód UT WoS článku

000472965400006

EID výsledku v databázi Scopus

2-s2.0-85067679396