Finite element analysis of bird impact damage to representative beam-edge structure

The 3D finite element analysis model for multi-layered spaced beam-edge structure under bird impact is established by taking the typical fuselage support structure of a certain type airplane as the object. Numerical results of the crucial parts during bird impact are obtained by using the ALE-Lagrange coupling method in the non-linear program (ANSYS/LS-DYNA), and the critical velocity when the beam-edge structure fails is achieved. The effects on structure response of different impact locations are investigated, and the structure failure mechanism for bird impact is analyzed. Both the structure deformation and failure mode from the simulation are consistent with the results of the prototype test, which proves the validity of the method and model proposed in this paper.