Numerical investigation on the blast resistance of a door panel

Blast doors are specially designed doors for military facilities and important civil buildings in potentially explosive environment. In the present investigation, Finite Element (FE) analysis is carried out to understand the dynamic response of blast door under a given blast loading using ABAQUS/Explicit®. Five different doors configurations with two different materials i.e. AISI 1045 steel and structural steel (ST37) are investigated. Further, effect of consideration of strain rate, on dynamic response of the doors, is investigated using rate dependent Johnson-Cook model. Blast load is applied using ConWep function to understand the dynamic response of blast door in terms of displacement at different locations along with their failure patterns. Based on this investigation, it is observed that central point displacement is significantly influenced by the geometry of door with all other parameters being same. Further, considerations of strain rate show no major effect on the peak displacement for both the materials considered in the present investigation.