The propagation of uncertainty in the geometrically nonlinear responses of smart sandwich porous cylindrical shells reinforced with graphene platelets
作者： M. Khayat , A. Baghlani , M.A. Najafgholipour
DOI: 10.1016/J.COMPSTRUCT.2020.113209
关键词:
摘要: Abstract This paper is concerned with the analysis of uncertainty propagation in nonlinear dynamic responses smart sandwich cylindrical shells under rectangular, sine, and exponential loads. The are composed a functionally graded porous (FGP) core reinforced nanocomposite graphene platelets (GPLs) surrounded by two piezoelectric layers. Various sources uncertainties related to material properties, geometry reinforcements, parameters considered this study. propagations examined for different variations GPL dispersions porosity distributions core. For purpose, three have been thickness direction. In order investigate shells, interval method which an appropriate technique systems bounded utilized. Halpin-Tsai model used find effective properties GPL-reinforced materials. equations motion derived based on higher-order shear deformation theory Sanders’ theory. solve obtain Fourier differential quadrature (FDQ) employed. According results, sensitivities internal moment, displacement, force highest values relative sources, respectively, whereas percentages respectively
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