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Correlation Between Elastic Modulus, Shear Modulus, Poisson's Ratio and Porosity in Porous Materials
Author(s) -
Kováčik J.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200700266
Subject(s) - porosity , materials science , shear modulus , poisson's ratio , composite material , modulus , poisson distribution , percolation theory , young's modulus , percolation (cognitive psychology) , elastic modulus , mathematics , statistics , topology (electrical circuits) , combinatorics , neuroscience , biology
Prediction of porous materials mechanical properties is crucial for their industrial applications. Now numerical models containing some errors or analytical semi‐empirical models are used. Percolation theory model is suitable to describe porosity dependence of Young‘s and shear modulus and Poisson‘s ratio over whole porosity range as it includes critical porosity. Moreover, it is able to explain Poisson‘s ratio porosity independence as well its decrease with increased porosity (see Fig).