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 functions along the longitudinal direction, whereas a linear distribution is assumed along the thickness direction. The cylindrical pressure vessel is subjected to an inner and outer pressure under a temperature increase. Different patterns of reinforcement are applied as distributions 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.

Two-dimensional thermo-elastic analysis of FG-CNTRC cylindrical pressure vessels

Dimitri, Rossana;Tornabene, Francesco
2018

Abstract

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 functions along the longitudinal direction, whereas a linear distribution is assumed along the thickness direction. The cylindrical pressure vessel is subjected to an inner and outer pressure under a temperature increase. Different patterns of reinforcement are applied as distributions 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.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11587/430301
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