Abstract
A numerical technique for analysing one-dimensional transient temperature distributions in a circular hollow cylinder composed of functionally graded ceramic-metal-based materials (FGM) is presented, without considering the temperature-dependent material properties. The cylinder is assumed to be initially in a steady state of gradient temperature; the ceramic inner surface is exposed to high temperature, and the metallic outer surface, which is associated with its in-service performance, is exposed to low temperature. Then, the FGM cylinder is cooled rapidly on the ceramic surface using a cold medium. The transient temperature and related thermal stresses in the FGM cylinder were analysed numerically for a model of the mullite-molybdenum FGM system. The technique for analysing the temperature distribution is quite simple and widely applicable for various boundary conditions of FGMs, in comparison with other proposed methods. 27 refs.