Vital parts of nuclear facilities are commonly protected by reinforced concrete (rc-) structures. External missile impacts are assumed to be relevant loading cases. In this context, impacts of non-deformable (“hard”), deformable (“soft”) as well as liquid filled (“wet”) missiles are considered. Major rc-target failure mechanisms are global bending, punching and perforation. This paper presents simulations with the computer program AUTODYN [1] on intermediate- and large-scale impact experiments dealing with the aforementioned rc-target failure mechanisms. Missile velocities are in the range of 110 to 250 m/s. In particular, two different intermediate scale test series are considered. One test deals with predominant punching failure and perforation of a rc-slab hit by a hard missile. Further, bending vibration of slabs impacted by soft missiles is analysed, whereupon the influence of liquid infill on loading and target response is pointed out. Finally, a large scaled test with combined bending and punching failure of a rc-slab due to soft missile impact is considered. Results of numerical simulation and tests are compared. It is found, that the used RHT [2] concrete material model is suitable to reproduce the responses of rc-structures subjected to various kinds of impact conditions. Sensitivities of simulation results on modelling parameters are discussed.
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