In this thesis, thermoelastic analysis of FG-GPLRC truncated
conical shells under thermo-mechanical shock loading based on Lord-Shulman
theory is investigated. Due to layer-by-layer changes in material properties,
multilayered truncated conical shells have been decomposed into a set of coaxial
nanocomposite shells. temperature distribution, displacement components,
mechanical and thermal stresses have been investigared. in The first step,
governing equations and related boundary conditions and compatibility, which
include the effects of thermal and mechanical stresses, have been derived using
the Lord-Shulman energy balance equations and the equations of motion. Then, in
order to discretize the governing equations and related boundary conditions and
compatibility, the efficient and accurate differential quadrature method in the
space dimension and the Newmark method in the time dimension have been used.
The effective elastic properties of the shell have been obtained using the modified
Halpin-Tsai micromechanical model. the rule of mixtures has been used to obtain
other material properties. Except one things (investigation of classical boundary
condition), clamped boundary conditions are considered on the lower and upper
surfaces. The rapid validation of this method for the thermoelastic analysis of FGGPLRC
truncated conical shells has been numerically demonstrated. At the end of
the study, the effect of different patterns of graphene platelet distribution and
aspect ratio, as well as the effect of geometry parameters on the thermo-elastic
response of the shell is investigated. Also It was shown that the addition of a small
amount of graphene platelets in the polymer field significantly increases the heat
wave speed and reduce the radial displacements.