Young's modulus of isotropic porous materials with spheroidal pores

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43898226" target="_blank" >RIV/60461373:22310/14:43898226 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Young's modulus of isotropic porous materials with spheroidal pores
Original language description
Based on the Eshelby solution for the single-inclusion problem and Wu's specification of this solution to spheroidal pores, we show that theEshelby-Wu coefficients for Young's modulus, in contrast to their counterparts for the bulk and shear moduli, arequite insensitive to changes of the Poisson ratio. Therefore the Eshelby-Wu coefficients of Young's modulus can be described (to a very good approximation) by a unique function of the aspect ratio, which is calculated in this paper and for which a mastercurve is obtained by segment-wise fitting. Also the implementation of the Eshelby-Wu coefficients into the well-known effective medium approximations (Maxwell, self-consistent, differential) and our exponential relation is discussed. Irrespective of themodel into which the Eshelby-Wu coefficients are implemented, prolate pore shape affects the porosity dependence of Young's modulus only very weakly, whereas oblate pore shape can lead to an arbitrary reduction of Young's modulus.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
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Project
<a href="/en/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porous Ceramics with Tailored Elasticity and Thermal Conductivity</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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