Abstract
We analyze numerically the residual stresses in a hollow cylinder of functionally graded materials (FGMs), arising from a fabrication process using a multi-layered model. The alumina-tungsten and alumina-zirconia systems are observed as example. The effects of residual stresses on thermal stresses generated from thermal shock are also studied. It is found that a gradient exponent adjusted by processing parameter can control the residual stresses and the mismatch in thermal expansion coefficients between two constituents has a more significant effect on residual stress distributions than does that of Young’s moduli.
