Analysis of bird impact modeling onto metallic riveted panels, which are typically idealized models for many practically used airframes structures like wing, flap, trailing edge, leading edge, are done using pure Lagrangian and SPH method. Second part of the paper deals the most challenging issue of fastener modelling for dynamic loads.
A first of its kind Bird Strike Simulation Index (BSSI) proposed with FEM setup time, run time and accuracy as parameters, BSSI will be a holistic guidance for industrial user. Merits in all the three methods and bird models are presented with a view to guide the user in choosing an appropriate method depending on time and resource availability. Critical parameters like HUGONIOT pressure and Stagnation pressure are compared from each study. Results are compared with published literature based on the standard experimental data. First part of current research aims at bring out comparison between analysis methods along with their pros and cons, the Explicit analysis capabilities of Abaqus were used for modeling the phenomenon using three methods LAGRANGIAN, COUPLED LAGRANGIAN-EULERIAN (CEL) and SMOOTH PARTICLE HYDRODYNAMICS (SPH). Current paper addresses relevant issues for today’s industry towards a universally accepted method of bird strike analysis Finite element based computational methods. A FE model for fastener failure and fastener hole embrittlement. There has been significant research done on various ways of doing bird strike simulation, till date Aerospace & defense Industry is concerned with two key issues 1.Comparative assessment of available methods 2. Bird strike Simulation helps in assuring aircraft safety, in eliminating cost & effort required for practical tests.
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