세라믹 원판의 충격파괴 시뮬레이션

In the air breathing engine, the intake air duct is blocked up from the solid propellant booster by the port cover during its speed reach Mach 0 to around 2.0. The inlet cover is removed and the port cover is broken to pieces by detonator or the impact of inlet air pressure when the air breathing vehicle reach to Mach 2.0. The dome port cover plate must stand the pressure of combustion chamber and easy to break from the RAM pressure. In that situation, ceramic is the most applicable material for dome port plate. In this study, the simulation on the impact fracture of the ceramic circular plate with the variable parameters(boundary conditions, elements, thickness) was conducted by the finite element method.