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Advanced composite materials have gained popularity in aircraft industry. The widespread application leads to the requirement of high efficient and reliable maintenance technology for composite components. Bonded composite repairs are preferred as they provide enhanced stress transfer mechanisms, joint efficiencies and aerodynamic performance. Because of the inherent complex damage behavior, the bonded repairs rely on the maintenance knowledge and experience heavily. The maintenance knowledge of composite components can improve the maintenance quality and efficiency. To accumulate and apply the knowledge, bonded repair knowledge modeling method based on ontology is presented in this paper. Firstly, the knowledge in bonded repairs process was analyzed and summarized. Then, the composite repairs domain ontology framework was constructed and the classes with attributes, relationships and instances were defined. Finally, the relational database was used to realize the formal representation of the ontology. The experimental results show that the proposed method is effective. Keywordsknowledge modeling; ontology; bonded repair; composite material

Research on Knowledge Modeling for Bonded Repair of Composite Aircraft Component