Numerical simulation of the effect of aircraft engines impact on the nuclear power plant containment

A new version of the governing equations for concrete is proposed. A numerical algorithm for solving the governing equations proposed has been developed. The developed algorithm is implemented as part of numerical 3D-code for the finite-size particle in cell method. Using the code the simulation of an airliner engine impact on the concrete containment was performed. It was obtained that engines with the speed of 100 m/s significantly damage the containment structure, but without full penetration (the engines stop right inside the protective shield). Nonetheless the total collapse of the central part of spherical dome onto the inner metal shell of the containment is probable when the engine impacts in downward direction. (paper)