BIAXIAL CYCLIC ANALYSIS OF Al_2O_3p-6061 Al COMPOSITE

摘要

Proportional and non-proportional biaxial cyclic tests were carried out on cylindrical specimens of 20/100 Al_2O_3p 6061 aluminum alloy metal matrix composite in the To (annealed) and T6 (quenched and artificially aged) conditions. These results were then compared to those found using a three- dimensional (3D) finite element analysis on a representative unit cell. A special material model, capable of accurately describing the behaviour of metals under multiaxial and non-proportional loads was used to simulate the elastic-plastic aluminum matrix.