MATHEMATICAL MODELING OF CALCULATION SCHEMES OF MODULAR PROTECTIVE SHELTER STRUCTURES

Abstract

The article presents the results of mathematical modeling of the impact of the explosion and the corresponding stress-strain state in reinforced concrete blocks of protective structures. The purpose of the work is to establish the safety of the developed protective shelters in the conditions of an explosion during aerial attacks. After conducting the calculations, the results were obtained, which allow to investigate the mechanisms of destruction or loss of integrity of shelter structures and to establish the relationship of these aspects with ensuring the performance of its protective functions under the influence of an explosion. To study the mechanisms of destruction or loss of integrity, the impact of the explosion was investigated. The scientific novelty consists in the development of a new approach to calculations, based on the application of the warhead value of the corresponding projectile in TNT equivalent, the distance of the explosion and the position of the point where the explosion occurs. The determined pressure according to these parameters can be used to study its effect on structures. The practical significance of the research - on the basis of the conducted research, the results of mathematical modeling of the behavior of protective shelters in the conditions of an explosion were obtained, which allow to investigate the mechanisms of destruction or loss of integrity of the structures of the shelter and to establish the relationship of these aspects with ensuring the performance of its protective functions under the influence of an explosion.