INFLUENCE OF TEMPERATURE-DEPENDENT PROPERTIES ON TEMPERATURE RESPONSE AND OPTIMUM DESIGN OF C/M FGMS UNDER THERMAL CYCLIC LOADING

摘要

The influence of temperature-dependentproperties on temperature response and optimum design ofnewly developed ceramic-metal functionally graded materialsunder cyclic thermal loading and high temperature gradientenvironment is studied. The thermal conductivity of the mate-rial is considered to be dependent on the temperature. In thispaper, the temperature’response of the material is calculatedusing a nonlinear finite element method. Emphasis is placedon the infuence of temperature-dependent properties on thethermal response and insulation property of the material un-der the different graded compositional distributions and dif-ferent heat flux magnitudes. Through the analysis,it is sug-gested that the infuence of temperature-dependent propertiescan not be neglected in the temperature response analysis andthe optimum design process of the material must be based onthe temperature-depenpdent temperature analysis theory.