Mechanical buckling analysis of FG-CNT reinforced composite cylindrical panels

In this research, mechanical buckling of carbon nanotube reinforced composite cylindrical panels under axial compression is investigated. Equivalent properties of the composite media are obtained by means of a modified rule of mixtures approach. The governing equations are obtained by using the Hamilton principle based on the first-order shear deformation theory. An energy based Ritz method and Chebyshev polynomials are used to obtain the critical buckling load. The results of this study are evaluated with those presented in the literature. In addition, the effect of different parameters such as characteristics of CNTs, geometrical characteristics of the panel and boundary Conditions are studied on the critical buckling load. It is shown that, FG-X pattern of SWCNTs distribution results in the maximum critical buckling load and by increasing the volume fraction of carbon nanotubes, the critical buckling load of composite cylindrical panel increases.

کلیدواژه ها:

Mechanical buckling ، Carbon nanotube reinforced composite ، Chebyshev polynomials ، Ritz method