عنوان مقاله [English]
In light of the importance of reinforced concrete reservoirs, as well as the increasing number of terrorist attacks, this study attempts to evaluate the performance of reinforced concrete reservoirs containing a fluid with response to TNT explosion at different distances while considering the Fluid-structure interaction (FSI) in relation to the loading impact from the blast wave. The LBE method in the LS-DYNA software was used for this research. The amounts of TNT used are 20, 40, 60, and 80 Kg at distances of 3, 4.5, 6 and 7.5 meters from the top of a concrete reservoir in simulated buried and non-buried situations. One of the most important results of this research is an increase of 14%, 33%, 35% and 41% of pressure in the blast impact on the reservoir with respectively 1.2, 1.4, 1.6 and 1.8 times of the TNT amount in the buried situation at a distance of 3 meters. Furthermore, the maximum pressure on the reservoir in the buried state at a distance of 3 meters was associated with an increase of 13%, 23%, 30% and 36%, respectively. The simulation results also illustrate the effect of soil as a protective cover in reducing the blast impact on the reservoir.
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