DEVELOPMENT OF FASTENER MODELS FOR IMPACT SIMULATION OF COMPOSITE STRUCTURES

摘要

High energy impact, such as bird-strike, is an important consideration in the design of aircraft structures. Although advanced numerical simulation is increasingly being used by aircraft designers to model impact events, further research into the behaviour of materials and joints is required to develop improved numerical models. The damage and failure behaviour of fastened composite joints, critical to the overall response of a structure under impact, is investigated through experiment and simulation. An existing fastener model suitable for modelling composite joints in impact simulation was evaluated and found to perform adequately, however more development is required to accurately capture all aspects of fastener failure in composites and the resulting damage in the structure.