MODELLING OF AIRCRAFT CESSNA 210 FOR IMPACT ANALYSIS ON NUCLEAR BUILDING

摘要

Nowadays the impact of aircrafts on buildings of nuclear power plants is carried out via the integral simulation approach. Thereby the impact of passenger aircrafts and military jets on the reactor building is in the focus as a failure could lead to dramatic consequences for the operation model of the power plant. In this article an impact loading of a smaller aircraft of type Cessna 210 will be presented for a crash on typical concrete structures. Therefore a finite element model of this aircraft for the FE-solver ABAQUS is generated and validated via existing data (France, 1988). Then this model is applied for a crash analysis in combination with FE-models of concrete walls. The structures represented general designs of typical civil engineering structures. The thickness of the investigated setups varies between 40, 60 and 80 cm with bending reinforcement at the front and the back side. The material properties of steel and concrete represent general setups. The crash scenario, i.e. the impact velocity, is defined based on the impulse of a published load-time-curve (Ft-curve). For the walls with a thickness of 40 and 60 cm damage is observed at the impact area. The damage occurs due to shear failure but finally no perforation of the aircraft is observed. For the impact of the wall with 80 cm almost no damage can be observed. Nevertheless it must be mentioned that the investigated walls and their boundary conditions represent only a general setup not taking into account material properties and percentage of reinforcement of specific structures.