Assessment on dynamic characterization of the cylindrical laminated composite shallow shell panel through experimental and numerical approach

Abstract

In the present study, the dynamic characterization of the glass fiber-reinforced polymer (GFRP)-laminated composite cylindrical open shallow shell panels is explored with the experimental and numerical approach. In the finite element modeling (FEM), the governing equilibrium equation of the cylindrical shell panel is developed with higher-order shear deformation theory by considering the nine-noded rectangular elements. The convergence and validation study of the present FEM is accomplished with the available literature. The cylindrical laminated composite shallow shell panels are fabricated with a curvature radius of 0.8 m, and the experimentation on the free vibration investigation is performed with various boundary conditions; then, the experimental outcomes are compared with the present FEM to verify the effectiveness. The detailed parametric investigation is executed to explore the impact of curvature radius (R), boundary conditions, thickness ratio, aspect ratio (L/B), and stacking sequence on the structural response of the cylindrical laminated composite shallow shell panel. Transverse vibration response of the GFRP cylindrical laminated composite shallow shell panel is also performed with the various curvature ratios at clamped at all end conditions.