Numerical simulation

Slab elements constitutive modelling Strength and failure behaviour of the steel used for meshes and reinforcing bars were described by the Johnson & Cook model [2-3]. Mechanical behaviour of concrete was described by the RiedelHiermaier-Thoma model [4]. The model couples an EoS, that accounts for the porous compaction of concrete, with a strength model composed of three limit surfaces accounting for pressure, stress triaxiality and strain rate. Model parameters were calibrated on breach size and shape observed in the experiments.