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Evaluation of Pressure Distribution in Buried Pipes with Liquid in the Explosion

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EN
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EN
In this Paper, a parametric study on pipes buried in soil was performed illustrating the results of blast loading. Effects of various parameters such as the physical properties of water, oil, gas, air, soil, pipes, and TNT have been investigated. The arbitrary Lagrangian-Eulerian (ALE) method was employed using LS-DYNA software. The maximum pressure in a buried pipe explosive was observed at an angle of about 0° to 45° and the minimum pressure occurred at an angle of about 45° to 90°. Therefore, all figures in this study illustrate that fluid pressure levels in buried pipes can help in their stabilization. In generally, by increasing the 1.23 times of liquid density under the explosion, the pressure levels in the soil decreased by 1.3 percent. The gas pressure has been increasing more than oil and water pipes 39.73 and 40.52 percent, respectively.
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  • Department of Civil Engineering, Roudehen Branch, Islamic Azad University, Iran, Aminnejad@riau.ac.ir
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Bibliografia
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  • 3. Blanchard R., Arndt D., Gra¨ tz R., et al. Explosions in closed pipes containing baffles and 90 degree bends. J Loss Preven Process IND, 2010, 23: 253-259.doi: 10.1016/j.jlp.2009.09.004
  • 4. Guo Ch, Lin B, Zhu Ch, et al. Effect of filling ratio of premixed methane/air explosion in an open-end pipe. International Journal of Spray and Combustion Dynamics, 2016, 1: 1-7.
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  • 8. Zimmerman, H., Cooper, G., Carney, J. and Ito, Y. Cratering and ground shock environment prediction of buried armor piercing bomb in dry Socorro plaster sand, Technical Report CRT-3295-010-01, California Research and Technology, Chattsworth Calif, 1990.
  • 9. Baker W.E., Cox P., Westin P.S., Kulesz J.J., Strehlow R.A. Explosion hazard and evaluation. Elsevier, New York.
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  • 11. LS-DYNA keyword user’s manual Vol. 1. Version 971, Livermore Software Technology Corporation (LSTC), California, USA, 2013.
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Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c5804f42-e692-402e-b99c-1028aac2d662
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