An investigation on the aeroelastic flutter characteristics of FG-CNTRC beams in the supersonic flow
作者： Hamed Asadi , Quan Wang
DOI: 10.1016/J.COMPOSITESB.2016.10.089
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摘要: Abstract The present research is dedicated to the aeroelastic analysis of functionally graded carbon nanotube reinforced composite (FG-CNTRC) beams subjected aerodynamic load and axial compression, simultaneously. nonlinear dynamic equations FG-CNTRC are obtained according von Karman type geometrical nonlinearity along with first-order shear deformation theory. pressure estimated in accordance quasi-steady supersonic piston Harmonic differential quadrature method (HDQM) applied discretize spatial domain. flutter buckling bounds calculated via derivations natural frequencies bifurcation points. Influences boundary conditions, parameters, volume fraction distribution nanotubes (CNTs) Mach number on stability boundaries shapes put into evidence through a set parametric studies. It found that presence not only increases critical beam, but also alters configurations beam. Furthermore, results indicate characteristics may be noticeably enhanced FG-X CNTs.
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