Model validation for bird strike crashworthiness
M. Post (TU Delft - Aerospace Engineering)
Saullo Pereira Castro – Mentor (TU Delft - Group Giovani Pereira Castro)
Wydo van de Waerdt – Mentor (Fokker Aerostructures)
J. J.E. Teuwen – Graduation committee member (TU Delft - Group Teuwen)
Xuerui Wang – Graduation committee member (TU Delft - Aerospace Structures & Computational Mechanics)
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Abstract
Bird strike simulations require accurate information about the nonlinear material properties of the bird and structure, dynamic changes in contact between bird and structure, and large displacements and rotations of the structural elements. The soft-body nature of birds allows it to flow fluidly upon impact, making accurate simulation validation difficult. Setting up a model requires evaluating and considering a large number of parameters. To simplify the process of obtaining validated bird strike models, a set of guidelines for setting up the simulations, covering the major parameters that influence the validation of the models, is established. This was done for an EWVT-SPH (Element Weighted Voronoi Tessellation Smoothed Particle Hydrodynamics) bird model by following the building block approach laid out by the aerospace standards of SAE-G28 for both rigid and complaint target structures.
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