On the Stress to Strain Transfer Ratio and Elastic Deflection Behavior for Al/SiC Functionally Graded Material

The stress to strain transfer ratio for aluminium-silicon carbide (Al/SiC) composite system is experimentally determined from the flexural load-deflection behavior of single-layer beams of different compositions (10, 20 and 30% of SiC). This ratio can be used for predicting the elastic modulus of the Al/SiC functionally graded material using an intermediate rule of mixtures. Using this data, the static flexural response of a layered functionally graded beam of Al/SiC with five layers of equal thickness with SiC content varying from 0 to 40%, is predicted employing a third-order zigzag theory. The predicted deflection is found to be in fairly close agreement with the experimental results.

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