Strength, stiffness, and panel peeling strength of carbon fiber-reinforced composite sandwich structures with aluminum honeycomb cores for vehicle body

Abstract Due to its superior performance, composite sandwich structure materials are widely used in the automobile industry, especially for vehicle body applications. Optimization of the design of composite aluminum honeycomb sandwich structures is therefore of great significance. In this study, carbon fiber-reinforced composite sandwich structures cured at high temperatures with aluminum honeycomb structures as the core material were investigated. Specifically, the effects of core thickness and density on the laminate material properties were studied by three-point bending and panel peeling tests.