Highlights: Graphical/ Tabular Abstract • Effect of composite layer orientation and boundary condition on the dynamic behavior of laminated composite cylindrical panel • Effect of R/a ratio on mid-point displacement • Effect of moving load on mid-point displacement and strain Purpose: In this study, dynamic behavior of moderately thick symmetrically laminated composite cylindrical panel under moving load is investigated using Ritz solution approximations. Theory and Methods: Time integration of

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... equation of motion is carried out using implicit Newmark average acceleration method. Parametric study is conducted in order to investigate the dynamic behavior of composite cylindrical panel for different velocities of moving load, curvature ratios, stacking schemes and boundary conditions. Results: Displacement at the mid-point increases with R/a ratio up to R/a=10. Displacement at the mid-point increases with moving load velocity, except for load velocity V=100 m/s. Central displacements for [-45/45/45/-45] layer orientation are less than those for [0/90/90/0] layer orientation. Displacements are less affected by moving load velocity in the case of clamped boundary condition compared to the simply supported boundary condition. Strains for [-45/45/45/-45] layer orientation are higher than those for [0/90/90/0] layer orientation. Conclusion: Composite layer orientation and boundary condition have important effect on the dynamic behavior of composite cylindrical panels under moving loads. Cylindrical panel with [-45/45/45/-45] layer scheme shows stiffer behavior than that with [0/90/90/0] layer scheme. Effect of moving load velocity is more significant for simply supported boundary condition compared to the clamped boundary condition. In this study, dynamic behavior of moderately thick symmetrically laminated composite cylindrical panel under moving load is investigated using Ritz solution approximations. Hamilton's principle (also referred to as dynamic version of Virtual work principle) is used to derive the equation of motion. First order shear deformation theory is used to consider transverse shear effect. Time integration of equation of motion is carried out using implicit Newmark average acceleration method. Parametric study is conducted in order to investigate the dynamic behavior of composite cylindrical panel for different velocities of moving load, curvature ratios, stacking schemes and boundary conditions.