An application of the modified shear lag model to study the influence of thermal residual stresses on the strength and yield strength of short fiber reinforced metal matrix composites

The modified shear lag model proposed recently was applied to calculate the rmal residual stresses and subsequent stress distributions under tensile an d compressive loadings. The expressions for the elastic moduli and the yiel d strengths under tensile and compressive loadings were derived which take account of thermal residual stresses. The asymmetries in the elastic modulu s and the yield strength were interpreted using the derived expressions and the obtained results of the stress calculations. The model predictions hav e exhibited good agreements with the experimental results and also with the other theoretical predictions.