Effect of Blast Load on Dynamic Deflection Responses of Internally Damaged Carbon–Epoxy Laminated Composite Shallow Shell Panel using Experimental Properties

This work investigates the dynamic deflection responses of delaminated carbon–epoxy composite shell panels. First of all, the carbon–epoxy composite panel is fabricated with a filament winding process and material properties are obtained. A higher-order displacement kinematics in association with finite element techniques are adopted for the modeling debonded panel structure. The equation of motion has been obtained (via the Lagrangian approach) and solved via Newmark’s integration for the steady state response. The experimental material properties are used in the numerical model and the influence of internal damaged shapes and sizes, and the associated input parameters (geometry and material) on time-dependent deflections of the curved panel structure are analyzed in detail.