In the present paper, the performance of multi-arched doors against explosion has been investigated using modeling in the LSDYNA finite element software. The use of multi-arch structure, in addition to reducing the weight and volume of materials and as a result reducing the cost of providing and building the door, causes a more uniform distribution of stress and reduces the concentration of stress in comparison with common doors with a smooth surface. The parameters investigated in this research include the number of arcs, the height of the arc, the weight of the explosive, the effect of far-field explosions, the overall dimensions of the door, the materials used in the construction of the door, and the type of hardener used to increase its resistance. The numerical modeling results show that by increasing the number of arcs from 1 to 5 arcs, the maximum displacement created in the center of the door decreases by about 86%. Increasing the height of the arch from 5 to 10 and 20 cm, based on the number of different arches, the maximum displacement of the center of the door decreases between 5 and 32%. Among the different methods of strengthening the door, the use of multi-arch method increases the resistance. This method creates this resistance by consuming less steel and is more economical.
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Salehi, H. (2022). Reinforcing Doors of the Safe Constructions Using
Multi-Arch Geometric Structures. Journal of Advanced Defense Science & Technology, 13(3), 203-214.
MLA
Hasan Salehi. "Reinforcing Doors of the Safe Constructions Using
Multi-Arch Geometric Structures". Journal of Advanced Defense Science & Technology, 13, 3, 2022, 203-214.
HARVARD
Salehi, H. (2022). 'Reinforcing Doors of the Safe Constructions Using
Multi-Arch Geometric Structures', Journal of Advanced Defense Science & Technology, 13(3), pp. 203-214.
VANCOUVER
Salehi, H. Reinforcing Doors of the Safe Constructions Using
Multi-Arch Geometric Structures. Journal of Advanced Defense Science & Technology, 2022; 13(3): 203-214.
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