Buckling analyses of functionally graded graphene-reinforced porous cylindrical shell using the Rayleigh–Ritz method

• Published in: Acta mechanica Vol. 231; no. 5; pp. 1887 - 1902
• Main Authors: Shahgholian, D., Safarpour, M., Rahimi, A. R., Alibeigloo, A.
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.05.2020; Springer; Springer Nature B.V
• Subjects: Analysis; Boundary conditions; Buckling; Classical and Continuum Physics; Comparative analysis; Computer simulation; Control; Cylindrical shells; Density; Dynamical Systems; Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics; Finite element method; Graphene; Graphite; Heat and Mass Transfer; Mechanical properties; Methods; Micromechanics; Modulus of elasticity; Nanocomposites; Original Paper; Platelets (materials); Poisson's ratio; Porosity; Ritz method; Shear deformation; Solid Mechanics; Theoretical and Applied Mechanics; Thickness ratio; Vibration
• ISSN: 0001-5970; 1619-6937
• DOI: 10.1007/s00707-020-02616-8

In this article, buckling analysis of a porous nanocomposite cylindrical shell reinforced with graphene platelets (GPLs) using first-order shear deformation theory is carried out. Internal pores and GPLs are scattered uniformly and/or nonuniformly in the thickness direction. The mechanical properties such as the effective modulus of elasticity through the thickness direction are computed by the modified Halpin–Tsai micromechanics approach, whereas density and Poisson ratio are in accordance with the rule of mixtures. The Rayleigh–Ritz method is employed to obtain a critical buckling load of the graphene-reinforced porous cylindrical shell. The accuracy of the obtained formulation is validated by comparing the numerical results with those reported in the available literature as well as with the software ABAQUS. Moreover, the effects of patterns of internal pores and GPLs distribution, GPLs weight fraction, density and size of internal pores, different boundary conditions, geometric factors such as mid-radius to thickness ratio and shape of graphene platelets on the buckling performance of the functionally graded graphene platelet-reinforced composite porous cylindrical shell are explored.