A repair efficiency evaluation framework for the honeycomb microwave absorbing structure

The honeycomb microwave absorbing structures are susceptible to damage during service, resulting in a decline in their mechanical and microwave absorption properties. Thus, evaluating the repaired structure is crucial to restore its original performance for aircraft operation. In the present work, a repair efficiency evaluation method for the honeycomb microwave absorbing structures is proposed, and the key indicators that affect the repair efficiency are determined firstly. Then, the scarf repair method is considered as a case to verify credibility and practical applicability of the proposed method based on experimental and simulation results. Finally, the repair efficiency under different patch angles is calculated to optimize the repair method. The main originality of the proposed method is its capability to evaluate the mechanical and electromagnetic properties of the repaired honeycomb microwave absorbing structures collaboratively. By considering both aspects, this framework contributes to the advancement and enhancement of repair techniques, ensuring the reliable and efficient operation of these structures.