Effects of Surface Elasticity on 3D Micromechanical Modeling of Short Fiber Nanocomposites

Abstract:

Recent studies have shown that the surface/interface free energy plays an important role in the effective mechanical properties of solids with nanosized inhomogeneity. In the present study, an analytical model is developed for 3D axisymmetric analysis of short fiber nanocomposites including the fiber end region, subjected to an applied axial load considering surface effects. Closed form expressions are obtained for 3D stress filed in the fiber and matrix. Moreover, performing numerical examples, it is shown that the elastic stress field is size dependent in both the fiber and matrix especially for fiber radii less than 50 nm.

• Periodical: Advanced Materials Research (Volumes 622-623)
• Pages: 975-979
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.622-623.975
• Online since: December 2012
• Authors: M.A. Saboori, R. Naghdabadi
• Keywords: Cylindrical Short Fiber, Micromechanical Modeling, Nanocomposite, Surface Elasticity

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