Experimental Analysis on Reduced-Scale Protective Doors

Abstract

Terrorist events that occurred in the last years changes the global security policy, imposing additional safety measures for building design. Therefore, the protection of access routes should be considered by using protective doors to resist to impact and explosions effects. This paper presents a thorough analysis on establishing a proper configuration to ensure a minimum level of blast protection for metallic doors used for government and military buildings. The analysis includes experimental tests and numerical analysis performed on a 1/3 scale model. Seven different sandwich-type configurations were tested according to specific requirements of actual standards. Each door was successively mounted on a metallic frame, horizontally placed, and a spherical plastic explosive charge, at a standoff distance of 35 cm, was detonated. The deformations were measured on each side of the door, offering the valuable data of their strength capacity and also of the dissipation energy level. The door with a honeycomb interior configuration resulted to be the optimal solution. The numerical results showed a good correlation with numerical ones, permitting the further development of a full-scale model.

Assessment of Multilayered Plates with Hyperelastic Coatings Subjected to Dynamic Loadings by Impact at Low Velocities

“…In this regard, for a better understanding of materials behavior, during the experimental tests (mechanical testing, ultrasonic testing), different types and configurations of samples and measurement tools have been tested (simple/bilayer/multilayer configurations, force or pressure transducers, videospeed cameras, scanning electron microscopy, computed tomography etc. ), in static, dynamic or impulsive regime, corroborated with numerical simulation, in order to obtain valid outcomes and results that can be extrapolated to large-scale experiments and applications [13,[20][21][22][23][24][25][26][27][28][29].…”