Page 16 - MODCOMP Newsletter no. 6
P. 16
Newsletter, Volume 6
Modelling of bird strike on aircraft leading edge,
using nanotechnology materials
Aircrafts certification includes impact scenarios number of bird impact experimental tests. Using
of high energy for allowing permission for flight SPH (Smooth Particle Hydrodynamics) bird
of aeronautical components such as stabilizers model capabilities of current software, quantita-
and flaps. One of these important impacts is the tive prediction can be obtained of the bird strike.
Bird Strike. During the traditional assessment AERNNOVA has developed a methodology that
methods, the design of the component was considered all stages of “Building Block Ap-
oversized, as the only way for validating the de- proach”. This procedure includes use of novel
sign, was performing real full-scale test of the bird model capabilities, high strain rates on com-
component, repeating the experimental tests till posites taking into account intralaminar damage
declaring it was successful design. This method- models, and cohesive elements. This approach
ology had elevated cost and a high risk to get a was applied for obtaining a predictive bird im-
certified design. This is mainly due to the contin- pact strike model over the Leading Edge of a
uous changes in the design phase procedures Horizontal Tail Plane in One-Shot by RTM pro-
and each change should be tested one by one to cess, reducing the number of necessary real full
check the influence of each factor on the design scale tests for certifiable design of an aeronauti-
of the structure. Currently, with the wide imple- cal structure.
mentation and increased power of numerical
simulation tools, a qualitative predictions of the For more information, you can contact:
test behaviour, can be applied to reduce the Yasser Essa, AERNNOVA
E-mail: yasser.essa@aernnova.com
dr. Yasser Essa
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