Abstract
The damage of structures subejected to tornado debris and volcanic cinder frequently occured. Because wind bone or volcanic induced-missiles could be deformed by the impact to structures, the effects of the defomaton of a projectile on the failure chactristics of RC slabs should be investigated. This study presents an investigation of the effects of buckling of a circular tube projectile on the failure characteristics of reinforced concrete slabs subjected to a projectile impact by conducting impact experiments and numerical simulations. The results of the experiments and numerical simulations showed the damage of RC slabs subjected to a deformable projectile decreased comparing to the case of a hard projectile because of change of impact load chacteristics due to the buckling of a circular tube.
