Modeling the Behavior of Modular Reinforced Concrete Shelters Under Explosion Conditions

Abstract

The purpose of the work is to study the safe operation of modular
reinforced concrete shelters under explosion conditions to ensure the safety of
people inside while protecting them from the effects of air strikes. The scientific
novelty is reduced to a comprehensive analysis and generalization of previous
studies on the assessment of the effects of excess pressure from the explosion of
military weapons, methods of mathematical modeling based on the method of
integrating dynamics equations and stress-strain equations of a solid body when
they are approximated by the finite element method in a nonlinear formulation.
Practical value - the results of the research proved that ground-based modular
shelters are safe in their practical use for protecting the population from the
effects of explosions during air strikes, as well as penetrating ionizing radiation.
Main results - the results of the analysis of the structural systems of modular
shelters substantiated the main provisions and assumptions of the
computational-theoretical approach to mathematical modeling of the impact of
an explosion on reinforced concrete structures of modular shelters. Calculation
schemes and a set of mathematical models of mechanical interaction between
elements of protective shelters, structural materials, as well as models of the
mechanical impact of an explosion on shelter elements have been developed.
Based on the mathematical modeling a conclusion about the safety of modular
shelters and their practical application for protection against explosions and
penetrating ionizing radiation has been made.