Anti-bird impact design of aircraft structure via bulding block approach

In the field of aerospace engineering, aircraft inevitably encounter bird strikes during their service life, posing a direct threat to flight safety and potentially leading to catastrophic accidents involving the loss of aircraft and human lives. Due to the complexity of impact dynamics, bird strike resistance design for aircraft structures necessitates an integrated approach combining design analysis, numerical simulation, and experimental validation. However, the lack of dynamic performance and constitutive parameters for structural materials, as well as limitations in experimental methods and instrumentation, resulted in lengthy and inefficient impact resistance design. In recent years, the Impact dynamics research team at Northwestern Polytechnical University has conducted a series of innovative studies focusing on bird strike resistance design for aircraft structures, based on building block approach. This work addresses the determination of dynamic properties and constitutive parameters of structural materials and bird, the dynamic failure behavior of riveted joints, and the development of a novel anti-bird strike design concept and its application in the bird strike resistance design of a civil aircraft.