Porosity predication with microstructural method for open-cell aluminum foam

Abstract : The mechanical property of open-cell aluminum foam directly depends on the foam porosity. This paper proposes three representative microstructural models of pores: 6-interface, 8-interface, and 12-interface microstructural models for open-cell aluminum foams, which are manufactured by the infiltration technique. It seems that the foam porosity is independent of the average sizes of particles; in contrast, it's strongly dependent on the arrangements of particles in the pre-forms. The predicted foam porosity, which changes from 0.52 to 0.71, is in accordance with the experimental results. In addition, the 12-interface microstructural model is recommended for the structure of the open-cell aluminum foam; on the contrary, the 6-interface microstructural model hardly appears in the structure of the open-cell aluminum foam. This analysis makes a good base to further the numerical modeling of the mechanical property for open-cell aluminum foam. It also provides a useful study of the mechanism of the foam porosity forming, variation, and some other effects in the manufacturing process.
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Submitted on : Monday, September 9, 2019 - 11:58:19 AM
Last modification on : Monday, September 16, 2019 - 4:36:06 PM

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Yishi Su, Xiao-Lu Gong. Porosity predication with microstructural method for open-cell aluminum foam. Special Topics & Reviews in Porous Media - An International Journal, Begellhouse, 2011, 2 (1), pp.65-72. ⟨10.1615/SpecialTopicsRevPorousMedia.v2.i1.70⟩. ⟨hal-02281520⟩

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