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    ARTICLE

    The Configuration Evolution and Macroscopic Elasticity of Fluid-filled Closed Cell Composites: Micromechanics and Multiscale Homogenization Modelling

    Lianhua Ma1, Bernard F. Rolfe2, Qingsheng Yang1,3, Chunhui Yang2,3

    CMES-Computer Modeling in Engineering & Sciences, Vol.79, No.2, pp. 131-158, 2011, DOI:10.3970/cmes.2011.079.131

    Abstract For fluid-filled closed cell composites widely distributed in nature, the configuration evolution and effective elastic properties are investigated using a micromechanical model and a multiscale homogenization theory, in which the effect of initial fluid pressure is considered. Based on the configuration evolution of the composite, we present a novel micromechanics model to examine the interactions between the initial fluid pressure and the macroscopic elasticity of the material. In this model, the initial fluid pressure of the closed cells and the corresponding configuration can be produced by applying an eigenstrain at the introduced fictitious stress-free configuration,… More >

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