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Panel flutter analysis of general laminated composite plates

Kouchakzadeh, M. A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compstruct.2010.05.001
  3. Publisher: 2010
  4. Abstract:
  5. The problem of nonlinear aeroelasticity of a general laminated composite plate in supersonic air flow is examined. The classical plate theory along with the von-Karman nonlinear strains is used for structural modeling, and linear piston theory is used for aerodynamic modeling. The coupled partial differential equations of motion are derived by use of Hamilton's principle and Galerkin's method is used to reduce the governing equations to a system of nonlinear ordinary differential equations in time, which are then solved by a direct numerical integration method. Effects of in-plane force, static pressure differential, fiber orientation and aerodynamic damping on the nonlinear aeroelastic behavior of the plate are studied. Results show that the fiber orientation has significant effect on dynamic behavior of the plate and the asymmetric properties, changes the behavior of the limit cycle oscillation
  6. Keywords:
  7. Laminated composite plates ; Nonlinear panel flutter ; Aerodynamic damping ; Aerodynamic modeling ; Aeroelastic behavior ; Air flow ; Classical plate theory ; Coupled partial differential equations ; Fiber orientations ; Galerkin's method ; Governing equations ; Hamilton's principle ; In-plane force ; Limit cycle oscillations ; Nonlinear aeroelasticity ; Nonlinear ordinary differential equation ; Nonlinear strain ; Numerical integration methods ; ON dynamics ; Panel flutter ; Piston theory ; Static pressure ; Structural modeling ; Control nonlinearities ; Delamination ; Differentiation (calculus) ; Equations of motion ; Flutter (aerodynamics) ; Gas dynamics ; Integration ; Laminated composites ; Laminating ; Numerical methods ; Ordinary differential equations ; Plates (structural components) ; Structural analysis ; Supersonic aerodynamics ; Supersonic flow ; Nonlinear equations ; Elasticity ; Fiber orientation ; Fiber reinforced composite ; Laminate ; Mathematical analysis ; Pressure ; Strain
  8. Source: Composite Structures ; Volume 92, Issue 12 , November , 2010 , Pages 2906-2915 ; 02638223 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S026382231000156X