The Simulation and Calculation of Buried Blast Pressure in Sandy Soils and the Presentation of Pressure Relationships by RSM Methodology

Document Type : Original Article

Authors

faculty of passive defense, Malek Ashtar University of Technology, Iran

Abstract

Today, with the spread of security threats, considering passive defense requirements has become more tangible. Since important and sensitive structures are usually designed and executed underground, for a safe and economical design of such structures, it is necessary to obtain a good quantitative estimate of the amount of buried explosion pressure in a variety of underground environments. For this purpose, in this study, the amount of blast pressure buried in different types of sandy soils has been investigated. The proposed numerical model has been made in Ansys- Autodyn finite element software and after verification of this proposed model with laboratory tests, the pressure from the buried explosion in various sandy soils has been extracted. Then, by comparing the outputs of this research with the results of the relations of TM 5-855-1 instruction, the accuracy of TM relations has been evaluated. Finally, to calculate the pressure in sandy soils with appropriate accuracy, several relationships have been presented using the response surface methodology (RSM).

Keywords

References

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Journal of Advanced Defense Science & Technology
Volume 12, Issue 3 - Serial Number 45
October 2021
Pages 265-272

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History

  • Receive Date: 23 January 2021
  • Revise Date: 26 October 2021
  • Accept Date: 26 October 2021
  • Publish Date: 23 October 2021

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