Mechanical property analysis and experimental validation of composite honeycomb sandwich radome considering perforation and impact damage

Abstract

To carry out the experimental verification of the mechanical properties analysis of the radome considering the damage factors, the test matrix design is carried out according to the finite element analysis method of the equivalent elastic theory and the idea of building block test verification. Firstly, the necessity and basic principle of equivalent elasticity theory in the performance analysis of complex curvature products considering damage factors are explained. Then, combined with the theory, a modular test matrix design is carried out, which should be able to test the correctness of the equivalent elastic modulus. Finally, a case study is carried out, and the difference between the test results and the simulation results is analyzed with the damaged radome as the research object. The results show that the development of the equivalent elasticity theory and the design of the test matrix can make the analysis results meet the engineering requirements.

A Rapid Modeling Method for Airborne FSS Radomes Based on Dynamic Customizable Primitives

“…Generally, skin materials are selected from fiber-reinforced resin matrix composites and reinforced ceramic matrix composites. The sandwich structures commonly feature materials such as honeycomb or foam, including Nomex paper honeycomb, phenolic resin, polyurethane foam, and polystyrene foam, among others [37][38][39].…”