Modeling Projectile Damage in Transport Aircraft Wing Structures

The objective of this paper is to quantify the damage caused by a missile impacting aircraft structures using computational simulations. A three step approach was taken. The first step was to investigate the effects of a simple body-on-body impact on the aircraft’s wing structure. The second step was to simulate the hydrodynamic ram effects due to a highvelocity projectile impacting and traveling through a fluid filled wing box. The third step was to add an explosive to the projectile model to investigate the combined effects of the kinetic energy of the projectile, hydrodynamic ram, and the explosive blast at various locations and incident angles. This paper presents the results of these steps where the LSDYNA code was used for each of the simulations. Results are presented in terms of images of damages as well as area removed.

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