Investigation of the behavior of cylindrical steel tanks under surface blast loads

Document Type : Original Article

Authors

1 Department of Civil Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran

2 Department of Civil Engineering, Tabriz branch, Islamic Azad University, Tabriz, Iran

Abstract

Studies of blast load and its effects on tanks is of particular importance. Blast on liquid storage structures possible to large due to the water crisis and disaster risk human health and the environment due to the spread of chemical substances and a fire hazard will result. Hence, understanding the dynamic behaviors of liquid storage structures under blast loading through numerical simulations is of utmost importance. In the present study, three dimensional (3D) finite element (FE) simulations of a steel water storage tank for different tank aspect ratios, percentages of water stored in the tank, tank wall thicknesses, boundary conditions at the bottom of the tank and magnitudes of blast loading have been performed using the FE software, Abaqus. Also check the behavior of structures resistant to the destructive effects of Blast waves, because of its importance in the design of sustainable structures against blast loading, has long been of interest to researchers. In this study, the numerical simulation of blast wave combined approach coupled as Euler - Lagrangian (CEL) and the ConWep has been paid. In this study, the explosive loading of domed fixed roof tanks with support and self-standing, considering the explosive load of 2000 kg of TNT explosive at a distance of 10 meters from the tanks is considered. To show the amount of stress at different heights on the tanks, four reference points were selected. The results show the critical situation at the reference point number three (corresponding to the empty space section of the tank). At reference point number three, the amount of stress is higher than at other points, and therefore this area is critical.

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Main Subjects

References

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History

  • Receive Date: 08 January 2022
  • Revise Date: 20 May 2022
  • Accept Date: 03 July 2022

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