Indirect Determination of Material Properties of Closed-Cell Metal Foam: Comparison of Voxel and Tetrahedral Finite Element Models

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F12%3A00383338" target="_blank" >RIV/68378297:_____/12:00383338 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4203/ccp.100.95" target="_blank" >http://dx.doi.org/10.4203/ccp.100.95</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4203/ccp.100.95" target="_blank" >10.4203/ccp.100.95</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Indirect Determination of Material Properties of Closed-Cell Metal Foam: Comparison of Voxel and Tetrahedral Finite Element Models

Popis výsledku v původním jazyce

In this paper a comprehensive evaluation of the microstructural finite element (micro- FE) models of closed-cell aluminum metal foam is given. Comparison of models developed using high resolution three-dimensional image data obtained using microtomographic scanning of a sample with different resolutions is presented. Two sets of micro-finite element models are prepared using the same image data: i) voxel finite element models ii) tetrahedral finite element models. A virtual uni-axial compression test issimulated in threemutually perpendicular directions to obtain the elastic moduli and the maximum values of the principal stresses as well as to quantify the anisotropy of the back-calculated material characteristics. The requirements in terms of the minimal spatial resolution of the microtomographic images needed for proper estimation of elastic properties of a closed-cell metal foams are given.

Název v anglickém jazyce

Indirect Determination of Material Properties of Closed-Cell Metal Foam: Comparison of Voxel and Tetrahedral Finite Element Models

Popis výsledku anglicky

In this paper a comprehensive evaluation of the microstructural finite element (micro- FE) models of closed-cell aluminum metal foam is given. Comparison of models developed using high resolution three-dimensional image data obtained using microtomographic scanning of a sample with different resolutions is presented. Two sets of micro-finite element models are prepared using the same image data: i) voxel finite element models ii) tetrahedral finite element models. A virtual uni-axial compression test issimulated in threemutually perpendicular directions to obtain the elastic moduli and the maximum values of the principal stresses as well as to quantify the anisotropy of the back-calculated material characteristics. The requirements in terms of the minimal spatial resolution of the microtomographic images needed for proper estimation of elastic properties of a closed-cell metal foams are given.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proc. of the 8th International conference on Engineering computational technology 2012

ISBN

978-1-905088-55-3

ISSN

—

e-ISSN

—

Počet stran výsledku

11

Strana od-do

243-253

Název nakladatele

Civil-Comp Press

Místo vydání

Stirlingshire

Místo konání akce

Dubrovník

Datum konání akce

4. 9. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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