TY - EJOU
AU - Ma, Baoyu
AU - Dui, Guansuo
AU - Yang, Shengyou
AU - Xin, Libiao
TI - The Study of Thermal Stresses of a Two Phase FGM Hollow Sphere
T2 - Computer Modeling in Engineering \& Sciences
PY - 2015
VL - 109-110
IS - 6
SN - 1526-1506
AB - This article focuses on the analytical solution for uniform heating of a FGM hollow sphere made of two phase of different materials. It is assumed that the volume fraction of one phase is a function f1=(rn-an)/(bn-an) varied in the radial direction. Based on the Voigt constant strain approximation, analytical solutions of stresses, displacements and the effective coefficient of thermal expansion are obtained. The effects of the volume fraction, Poisson’s ratio, Young’s moduli and coefficients of thermal expansion on the solutions are studied. Two special cases, constant elastic modulus and constant coefficient of thermal expansion, are finally discussed.
KW - FGM hollow sphere
KW - uniform heating
KW - thermal stress
KW - effective coefficient of thermal expansion
DO - 10.3970/cmes.2015.109.537