Abstract:
"Numerical Simulation of Jumbo Jet Impacting on Thick Concrete Walls -Effects of Reinforcement and Wall Thickness"
This study presents a three-dimensional numerical simulation of a Boeing 747 aircraft impacting thick concrete walls of varying reinforcement and thickness using the AUTODYN®-3D computational framework. The objective is to assess the structural response of reinforced and non-reinforced concrete walls under extreme impact conditions. The aircraft model includes fuselage, wings, engines, and jet fuel, while the target walls are modeled with solid elements for concrete and beam elements for reinforcement. The simulation incorporates advanced material models, including the Johnson-Cook equations for aluminum and steel and a dynamic failure model for concrete. The study evaluates perforation, cratering, spalling, and overall structural damage to the walls, alongside the crushing behavior of the aircraft. Results indicate that wall thickness plays a more significant role in mitigating impact damage than reinforcement. The findings contribute to impact-resistant structural design and provide insights into computational methodologies for high-velocity impact analysis.
