Study on the bearing performance of antenna radome based on temperature-dependent cohesive zone model

As a critical component of aircraft guidance systems, antenna radomes are connected to the aircraft body via structural adhesives. Antenna radomes endure harsh thermo-mechanical coupled loads during flight, where the bonding interface often becomes the weak point in the structural design. The overall bearing performance of the antenna radome depends on the interface bonding strength. Therefore, it is critical to perform structural optimization to simulate the mechanical response of bonding interfaces under thermo-mechanical loads. This study establishes a temperature-dependent cohesive zone constitutive model for antenna radome interfaces and employs ABAQUS finite element software to predict the damage behavior of the bonding interface, which accurately predicts the bearing performance of the antenna radome under thermo-mechanical loads. Good consistency is achieved with experimental results, providing guidance for the structural design of the antenna radome.