Techno Press

Steel and Composite Structures   Volume 27, Number 4, May25 2018, pages 525-536
Two-dimensional thermo-elastic analysis of FG-CNTRC cylindrical pressure vessels
Mohammad Arefi, Masoud Mohammadi, Ali Tabatabaeian, Rossana Dimitri and Francesco Tornabene

Abstract     [Full Text]
    This paper focuses on the application of the first-order shear deformation theory (FSDT) to thermo-elastic static problems of functionally graded carbon nanotubes reinforced composite (FG-CNTRC) cylindrical pressure vessels. A symmetric displacement field is considered as unknown function along the longitudinal direction, whereas a linear distribution is assumed along the thickness direction. The cylindrical pressure vessels are subjected to an inner and outer pressure under a temperature increase. Different patterns of reinforcement are applied as distribution of CNTs. The effective material properties of FG-CNTRC cylindrical pressure vessels are measured based on the rule of mixture, whereas the governing equations of the problem are here derived through the principle of virtual works. A large parametric investigation studies the effect of some significant parameters, such as the pattern and volume fraction of CNTs, on the longitudinal distribution of deformation, strain and stress components, as useful tool for practical engineering applications.
Key Words
    cylindrical pressure vessel; first-order shear deformation theory; functionally graded carbon nanotubes; thermo-elastic analysis
(1) Mohammad Arefi, Masoud Mohammadi, Ali Tabatabaeian:
Department of Solid Mechanics, University of Kashan, Kashan 87317-51167, Iran;
(2) Rossana Dimitri:
Department of Innovation Engineering, Università del Salento, Lecce, Italy;
(3) Francesco Tornabene:
DICAM Department, Universita di Bologna, Bologna, Italy.

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