Rj. Arsenault et Uts. Pillai, THE BAUSCHINGER EFFECT IN A SIC AL COMPOSITE, Metallurgical and materials transactions. A, Physical metallurgy andmaterials science, 27(4), 1996, pp. 995-1001
An interesting mechanical property of SiC/Al composites is that the te
nsile yield stress is less than the compressive yield stress, even tho
ugh the apparent modulus in tension is greater than that in compressio
n. An investigation was undertaken to determine if the Bauschinger eff
ect (BE) in a SiC/Al composite is asymmetrical. It was found that the
BE is indeed asymmetrical in the case of the composite and the magnitu
de of the BE increases with total forward strain. These results can be
explained in terms of the changes in ''back stress'' caused by the ch
anges in the residual stress and the work hardening during forward str
ain.