Affordable Access

Publisher Website

Plasticity of isotropic composites with randomly oriented and packeted inclusions

Authors
Journal
International Journal of Plasticity
0749-6419
Publisher
Elsevier
Publication Date
Volume
10
Issue
5
Identifiers
DOI: 10.1016/0749-6419(94)90014-0

Abstract

Abstract Based on an energy approach, the nonlinear elastoplastic behavior of a two-phase, isotropic composite with two kinds of inclusion morphologies are determined as a function of inclusion shape at the low concentration range. Both types of morphology involve the three-dimensional randomly oriented spheroidal inclusions, but one is homogeneously dispersed, resulting in an ordinary two-phase composite, and the other possesses a packeted structure in a form similar to a polycrystalline arrangement. The overall elastoplastic response of these two kinds of composite is found to be strongly dependent upon the inclusion shape and their morphological arrangement. Disc-shaped inclusions generally give a superior reinforcing effect, but when the inclusions become very stiff or totally rigid, needle-shaped inclusions tend to be more effective. In line with the known elastic behavior, the overall elastoplastic response of an ordinary two-phase composite is markedly stiffer than that of the packeted composite at a given inclusion shape and concentration. The theory is finally compared with the finite-element calculations of a particle-reinforced composite and of a packeted one with oblate and prolate inclusions, and also with some experimental data for a silicon-carbide/aluminium system. In both cases, reasonable agreement is found in the comparison.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

An effective medium theory for multi-phase matrix-...

on International Journal of Engin...

Thermal conductance of randomly oriented composite...

on International Journal of Heat... Jan 01, 2000

Overall elastoplastic property for micropolar comp...

on Computational Materials Scienc... Jan 01, 2006

Hypervelocity impact on isotropic composites with...

on International Journal of Impac... Jan 01, 1997
More articles like this..