Computational study of a newly developed wing leading edge against bird strike

In this research, a newly developed aircraft wing leading edge structure reinforced with the combination of straight and inclined plates is designed and numerically analyzed against bird impact to increase the efficiency of the anti-bird strike performance of the traditional wing. Nonlinear commercial explicit dynamic code Ansys is adopted to run the virtual test cases. The computational bird model is presented with the Lagrange algorithm and Mooney-Rivlin hyperelastic material parameters validated in previous research. The developed wing model requires to absorb less kinetic energy than the traditional wing. Therefore, the calculated deformation and equivalent plastic strain of the skin are 108% and 84.3% less than the conventional wing. Moreover, the ribs near the impact area experience a maximum equivalent stress value of 356.36 MPa compared to the traditional wing of 516 MPa with distorted edges. Finally, it can be concluded that the newly developed leading-edge model can be an excellent choice to enhance the anti-bird strike performance of commercial aircraft, successfully fulfilling the design requirements of bird strike set by FAR/JAR/CS 25.631.