Effective elastic moduli of porous solids

Ramakrishnan, N.; Arunachalam, V.

doi:10.1007/bf00582462

Cited by 205 publications

(83 citation statements)

References 14 publications

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“…The effective Young's modulus (E eff ) and shear modulus (G eff ) for the porous SOFC electrode material are given by the Ramakrishnan and Arunachalam model [50] as:…”

Section: Thermal-mechanical Relationmentioning

confidence: 99%

Effects of electrode composition on the electrochemical performance and mechanical property of micro-tubular solid oxide fuel cell

Lin

2012

International Journal of Hydrogen Energy

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“…The effective Young's modulus (E eff ) and shear modulus (G eff ) for the porous SOFC electrode material are given by the Ramakrishnan and Arunachalam model [50] as:…”

Section: Thermal-mechanical Relationmentioning

confidence: 99%

Effects of electrode composition on the electrochemical performance and mechanical property of micro-tubular solid oxide fuel cell

Lin

2012

International Journal of Hydrogen Energy

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“…Although a simple formula exists for the bulk modulus over the full porosity range [32], exact results for the Young's moduli are not available. Ramakrishnan and Arunachalam [33] recently derived the approximation…”

Section: Comparison With Micro-mechanical and Msa Formulaementioning

confidence: 99%

Elastic Properties of Model Porous Ceramics

Roberts

Garboczi

2000

Journal of the American Ceramic Society

404

252

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The finite element method (FEM) is used to study the influence of porosity and pore shape on the elastic properties of model porous ceramics. The Young's modulus of each model was found to be practically independent of the solid Poisson's ratio. At a sufficiently high porosity, the Poisson's ratio of the porous models converged to a fixed value independent of the solid Poisson's ratio. The Young's modulus of the models is in good agreement with experimental data. We provide simple formulae which can be used to predict the elastic properties of ceramics, and allow the accurate interpretation of empirical property-porosity relations in terms of pore shape and structure.

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“…The first approach, derived from homogenisation methods, [26][27][28] was to assume that porous materials are special cases of biphasic materials with mechanical properties equal to zero for the "porous phase". [29][30][31][32] They generally lead to polynomial or homographic laws. The main drawback of such models is that they do not consider the morphology of porosity as being specific (it is just assumed to be identical to that of a composite microstructure which is actually made of two solid phases).…”

Section: Introductionmentioning

confidence: 99%