The Poisson ratio of porous materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021604" target="_blank" >RIV/60461373:22310/09:00021604 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Poisson ratio of porous materials

Popis výsledku v původním jazyce

According to classical continuum mechanics the Poisson ratio can be calculated via standard elasticity relations from two measured moduli or ultrasonic velocities. However, it is a long-standing problem of materials science to correctly predict the porosity dependence of the effective Poisson ratio of porous materials. In this contribution the different attempts to solve this problem are reviewed and a new solution is proposed. In particular, we compare the Poisson ratio prediction using three differentrelations: the linear non-interaction approximation, the Phani-Niyogi power-law relation, as well as two relations recently proposed by the authors (an exponential relation and an extended Coble-Kingery type relation). It is found that using our exponential relation the Poisson ratio prediction seems to be the most realistic. In contrast to the other alternatives it is in relatively good accordance with a large amount of literature data and ? supporting the ideas of several other author

Název v anglickém jazyce

The Poisson ratio of porous materials

Popis výsledku anglicky

According to classical continuum mechanics the Poisson ratio can be calculated via standard elasticity relations from two measured moduli or ultrasonic velocities. However, it is a long-standing problem of materials science to correctly predict the porosity dependence of the effective Poisson ratio of porous materials. In this contribution the different attempts to solve this problem are reviewed and a new solution is proposed. In particular, we compare the Poisson ratio prediction using three differentrelations: the linear non-interaction approximation, the Phani-Niyogi power-law relation, as well as two relations recently proposed by the authors (an exponential relation and an extended Coble-Kingery type relation). It is found that using our exponential relation the Poisson ratio prediction seems to be the most realistic. In contrast to the other alternatives it is in relatively good accordance with a large amount of literature data and ? supporting the ideas of several other author

Druh

D - Stať ve sborníku

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/IAA401250703" target="_blank" >IAA401250703: PORÉZNÍ KERAMIKA, KERAMICKÉ KOMPOZITY A NANOKERAMIKA</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

Characterisation of Porous Solids VIII - Proceedings of the 8th International Symposium on the Characterisation of Porous Solids, Edinburgh

ISBN

978-1-84755-904-3

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Royal Society of Chemistry

Místo vydání

Cambridge

Místo konání akce

Edinburgh

Datum konání akce

10. 6. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000269656900056