A numerical model for bird strike on sidewall structure of an aircraft nose

Abstract In order to examine the potential of using the coupled smooth particles hydrodynamic (SPH) and finite element (FE) method to predict the dynamic responses of aircraft structures in bird strike events, bird-strike tests on the sidewall structure of an aircraft nose are carried out and numerically simulated. The bird is modeled with SPH and described by the Murnaghan equation of state, while the structure is modeled with finite elements. A coupled SPH–FE method is developed to simulate the bird-strike tests and a numerical model is established using a commercial software PAM-CRASH. The bird model shows no signs of instability and correctly modeled the break-up of the bird into particles. Finally the dynamic response such as strains in the skin is simulated and compared with test results, and the simulated deformation and fracture process of the sidewall structure is compared with images recorded by a high speed camera. Good agreement between the simulation results and test data indicates that the coupled SPH–FE method can provide a very powerful tool in predicting the dynamic responses of aircraft structures in events of bird strike.

[1]  Michele Meo,et al.  SPH – Lagrangian study of bird impact on leading edge wing , 2011 .

[2]  M. A. McCarthy,et al.  Modelling of Bird Strike on an Aircraft Wing Leading Edge Made from Fibre Metal Laminates – Part 2: Modelling of Impact with SPH Bird Model , 2004 .

[3]  Gui-Rong Liu,et al.  Restoring particle consistency in smoothed particle hydrodynamics , 2006 .

[4]  N Mithun,et al.  Finite Element Modelling For Bird Strike Analysis And Review Of Existing Numerical Methods , 2012 .

[5]  Saeed Ziaei-Rad,et al.  A new bird model and the effect of bird geometry in impacts from various orientations , 2013 .

[6]  Shaker A. Meguid,et al.  Finite Element Modeling of a Bird Striking an Engine Fan Blade , 2007 .

[7]  L. Lucy.  A numerical approach to the testing of the fission hypothesis. , 1977 .

[8]  Thomas J. Vasko,et al.  Arbitrary Lagrange Eulerian Approach for Bird-Strike Analysis Using LS-DYNA , 2013 .

[9]  Shaker A. Meguid,et al.  FE analysis of geometry effects of an artificial bird striking an aeroengine fan blade , 2008 .

[10]  Zhufeng Yue,et al.  Numerical simulation of damage and failure in aircraft windshield structure against bird strike , 2010 .

[11]  Edward H Phillips.  BIRD-STRIKE THREAT DRAWS NEW WARNING , 1996 .

[12]  Ivica Smojver,et al.  Bird strike damage analysis in aircraft structures using Abaqus/Explicit and coupled Eulerian Lagrangian approach , 2011 .

[13]  Sebastian Heimbs,et al.  Review: Computational methods for bird strike simulations: A review , 2011 .