Stresses in FGM pressure tubes under non-uniform temperature distribution

Eraslan A. N.

STRUCTURAL ENGINEERING AND MECHANICS, vol.26, no.4, pp.393-408, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 4
  • Publication Date: 2007
  • Doi Number: 10.12989/sem.2007.26.4.393
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.393-408
  • Keywords: pressure chamber, functionally graded material, stress analysis, von Mises' criterion, HOLLOW CYLINDER
  • Middle East Technical University Affiliated: Yes


The effects of material nonhomogeneity and nonisothermal conditions on the stress response of pressurized tubes are assessed by virtue of a computational model. The modulus of elasticity, the Poisson's ratio, the yield strength, and the coefficient of thermal expansion, are assumed to vary nonlinearly in the tube. A logarithmic temperature distribution within the tube is proposed. Under these conditions, it is shown that the stress states and the magnitudes of response variables are affected significantly by both the material nonhomogeneity and the existence of the radial temperature gradient.