Dynamic analysis of laminated composite plates traversed by a moving mass based on a first-order theory

Ghafoori, E ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compstruct.2010.01.011
  3. Publisher: 2010
  4. Abstract:
  5. The dynamic response of angle-ply laminated composite plates traversed by a moving mass or a moving force is investigated. For this purpose, a finite element method based on the first-order shear deformation theory is used. Stationary and adaptive mesh techniques have been applied as two different meshing schemes. The adaptive mesh strategy is then used to avoid off-nodal position of moving mass. In this manner, the finite element mesh is continuously adapted to follow and comply with the path of moving mass. A Newmark direct integration method is employed to solve the equations of motion. Parametric study is directed to find out how different parameters like mass of the moving object as well as the type of the angle-ply laminated composite plates affect the dynamic response. Numerical results show the significant effects of the stacking order on the dynamic responses of the composite structures under a moving mass. It is found that although [30/-60/-60/30] lamination shows the highest maximum vertical deflection but [-45/45/45/-45] lamination has the highest value of the dynamic amplification factor. The dynamic amplification factor for different stacking orders and mass velocities is less than 1.25
  6. Keywords:
  7. Moving force ; Adaptive meshes ; Angle-ply laminated composite plates ; Composite plate ; Composite plates ; Dynamic amplification factors ; Finite element meshes ; First-order shear deformation theory ; First-order theories ; Laminated composite plates ; Mass velocity ; Moving forces ; Moving mass ; Moving objects ; Newmark direct integration method ; Nodal positions ; Numerical results ; Parametric study ; Stacking order ; Vertical deflections ; Amplification ; Attitude control ; Buckling ; Composite structures ; Delamination ; Dynamic analysis ; Equations of motion ; Finite element method ; Laminated composites ; Laminating ; Plates (structural components) ; Shear deformation ; Structure (composition) ; Dynamic response ; Composite property ; Deformation ; Fiber reinforced composite ; Finite element analysis ; Laminate ; Shear property ; Structural analysis
  8. Source: Composite Structures ; Volume 92, Issue 8 , 2010 , Pages 1865-1876 ; 02638223 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0263822310000218?np=y&npKey=ba086422ffc477194bc0f0cc13c1f6ef7a0e23589bb30ff168040d937e20226d