B-bar FEMs for anisotropic elasticity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00237358" target="_blank" >RIV/68407700:21110/14:00237358 - isvavai.cz</a>

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/nme.4621/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/nme.4621/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/nme.4621" target="_blank" >10.1002/nme.4621</a>

Jazyk výsledku

angličtina

Název v původním jazyce

B-bar FEMs for anisotropic elasticity

Popis výsledku v původním jazyce

Anisotropic elastic materials, such as homogenized model of fiber-reinforced matrix, can display near rigidity under certain applied stress? the resulting strains are small compared to the strains that would occur for other stresses of comparable magnitude. The anisotropic material could be rigid under hydrostatic pressure if the material were incompressible, as in isotropic elasticity, but also for other stresses. Some commonly used finite element techniques are effective in dealing with incompressibility, but are ill-equipped to handle anisotropic material that lock under stress states that are not mostly hydrostatic (e.g. uniformly reduced serendipity and Q1/Q0 B-bar hexahedra). The failure of the classic B-bar method is attributed to the assumptionthat the mode of deformation to be relieved is one of near incompressibility. The remedy proposed here is based on the spectral decomposition of the compliance matrix of the material. The spectrum can be interpreted to separate nearly-ri

Název v anglickém jazyce

B-bar FEMs for anisotropic elasticity

Popis výsledku anglicky

Anisotropic elastic materials, such as homogenized model of fiber-reinforced matrix, can display near rigidity under certain applied stress? the resulting strains are small compared to the strains that would occur for other stresses of comparable magnitude. The anisotropic material could be rigid under hydrostatic pressure if the material were incompressible, as in isotropic elasticity, but also for other stresses. Some commonly used finite element techniques are effective in dealing with incompressibility, but are ill-equipped to handle anisotropic material that lock under stress states that are not mostly hydrostatic (e.g. uniformly reduced serendipity and Q1/Q0 B-bar hexahedra). The failure of the classic B-bar method is attributed to the assumptionthat the mode of deformation to be relieved is one of near incompressibility. The remedy proposed here is based on the spectral decomposition of the compliance matrix of the material. The spectrum can be interpreted to separate nearly-ri

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-22230S" target="_blank" >GA13-22230S: Hybridní víceúrovňové nástroje modelování heterogenních pevných látek</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

International Journal for Numerical Methods in Engineering

ISSN

1097-0207

e-ISSN

—

Svazek periodika

98

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

92-104

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84897605307