Dynamic reaction of the wall with an opened window opening from the explosive effect
F.L. Doronin, Associate Professor of the Hydraulic
and Hydraulic Engineering Department
Moscow State University of Civil Engineering
(National Research University)
Abstract. Residential buildings are not provided with sufficient strength for shortterm dynamic impacts that arise inside the premises. The facilities are mainly designed for the perception of vertical static loads. In the case of impact explosive indoors, structures lose stability and are easily destroyed. In a short period of time, the effects of the pulse of the damping force do not have time to absorb the energy released during the explosion. A favorable factor that reduces the excessive pressure inside the building is the opening of lightweight structures, in particular window openings. A technique is proposed for the numerical solution of the dynamic equation based on the theory of step integration, which makes it possible to evaluate the reaction of the wall panel in the elastoplastic stage of deformation development, taking into account the opening of the window openings and the change in the properties of materials in the loading process.
Key words: explosive effect, dynamic reaction, wall panel, window opening, elastoplastic state, overpressure, maximum deformation.