On the Elastic Field of Al/SiC Nanocomposite

Pourhashemi, H.; Dashtbayazi, M. R.

doi:10.22060/mej.2017.12281.5303

On the Elastic Field of Al/SiC Nanocomposite

Document Type : Research Article

Authors

Department of Mechanical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

10.22060/mej.2017.12281.5303

Abstract

This study aims to analyze the linear elastic behavior of an aluminum matrix
nanocomposite reinforced with SiC nanoparticles. Once, a representative volume element was considered
for the nanocomposite with a cuboidal inclusion. The elastic moduli of the matrix and the inclusion were
the same, but it contained eigenstrain. The stress and the strain fields were obtained for the inclusion
and the aluminum by Galerkin vector method. The stress and the strain fields in the inclusion problem
were in a good agreement with the results in the literature. A similar representative volume element was
considered for the nanocomposite with a cuboidal inhomogeneity. The elastic moduli of the matrix and
the inhomogeneity were different, but it did not have any eigenstrain. For the calculation of the Eshelby
tensor and the elastic fields for the inhomogeneity problem, the equivalent inclusion method (EIM) was
applied. In the EIM, the uniform and equivalent eigenstrain were considered. The stress and the strain
fields within the inhomogeneity and the matrix were obtained. Results showed that the stress and the
strain in the cuboidal inclusion were less than the cuboidal inhomogeneity due to the difference between
the matrix and the reinforcement materials.

Highlights

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Keywords

References