Three-dimensionalfinite element method models have been used to investigate features of the stress–strain responses for compressive and tensile loadings of whisker reinforced metal matrix composites. Two unit cells have been used; in each the composite is represented as a periodic array of short fibres within a metal matrix. The two unit cells represent staggered and in registry fibre arrangements. Calculations have been carried out and compared with recently published experimental results of the first differentials of the stress–strain response of a SiC whisker reinforced 2009 series Al alloy composite.
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