302 Material Design for Reduction of Thermal Stress in a Functionally Graded Material Rotating Disk

Abstract

It is confirmed that appreciable deflections occur in large brake disks after the braking due to having eyebrow-shaped holes as decoration when the number of braking under excess loading is more than several number. The purpose of this paper is to formulate a method of material design in order to reduce the plane-thermal stress and the centrifugal stress in a rotating disk composed of functionally graded material with an arbitrary mechanical and thermal nonhomogeneities in the radial direction and without holes, heated intermittently in the annular region near outer radius.