%0 Journal Article
%T Strain Gradient Thermoelasticity of Functionally Graded Cylinders
%J Scientia Iranica
%I Sharif University of Technology
%Z 1026-3098
%A Sadeghi, H.
%A Baghani, M.
%A Naghdabadi, R.
%D 2014
%\ 08/01/2014
%V 21
%N 4
%P 1415-1423
%! Strain Gradient Thermoelasticity of Functionally Graded Cylinders
%K Functionally-graded
%K Thermoelastic thick-walled cylinder
%K Strain gra- dient elasticity
%K Intrinsic length parameter
%R
%X In this paper, strain gradient thermo-elasticity formulation for axisym- metric Functionally Graded (FG) thick-walled cylinders is presented. For this purpose, elastic strain energy density function is considered to be a function of gradient of strain tensor in addition to the strain tensor. The material properties are assumed to vary according to a power law in radial direction. Using the constitutive equations and equation of equilibrium in the cylindrical coordinates, a fourth order non-homogenous governing equa- tion for thermo-elastic analysis of thick-walled FG cylinders subjected to thermal and mechanical loadings is obtained and solved numerically. Re- sults show that the intrinsic length parameter a ects the stress distribution in FG thick-walled cylinders greatly and increasing the intrinsic length pa- rameter reduces the maximum radial and hoop stresses. Also, the effect of FG power indices on the radial and hoop stresses are studied.
%U https://scientiairanica.sharif.edu/article_3563_fa97fc339147e9fda6f2630761fceb3b.pdf