Author/Authors :
Ghorbanpour-Arani, A Department of Mechanical Engineering, Faculty of Engineering, University of Kashan, Kashan , Sadooghi, V Department of Mechanical Engineering, Faculty of Engineering, University of Kashan, Kashan , Mozdianfard, M. R Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Kashan , Mohammadimehr, M Department of Mechanical Engineering, Faculty of Engineering, University of Kashan, Kashan
Abstract :
In this article, thermo-elastic-behavior of a thick-walled cylinder
made from a polystyrene nanocomposite reinforced with
functionally graded (FG) single-walled carbon nanotubes
(SWCNTs) was carried out in radial direction while subjected to a
steady state thermal field. The SWCNTs were assumed aligned,
straight with infinite length and a uniform layout. Two types of
variations in the volume fraction of SWCNTs were considered in the
structure of the FG cylinder along the radius from inner to outer
surface, namely: incrementally increasing (Inc Inc) and
incrementally decreasing (Inc Dec). These are compared with
uniformly distributed (UD) structure. Mori-Tanaka method was used
for stress-strain analysis. Using equations of motion, stress-strain
and their corresponding constitutive correlations of a polystyrene
vessel, a second order ordinary differential equation was proposed
based on the radial displacement which was solved in order to obtain
the distribution of displacement and radial, circumferential and axial
stresses. For constant temperatures at the inner and outer surfaces of
the FG cylinder considered here, results in this work indicate that
radial and circumferential stresses and displacement are lower for
the Inc Inc FG cylinder, and the axial stresses are higher irrespective
of the structure of the FG material.
Keywords :
Stress analysis , Reinforced FG SWCNTs , Composite , Thick‐walled cylinder
