Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method

Zhu Gan; Ding Jianguo

doi:doi:10.11648/j.sd.20210903.16

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Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method

Zhu Gan, Ding Jianguo

Published in Science Discovery (Volume 9, Issue 3)

Received: 14 April 2021 Accepted: Published: 24 May 2021

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Abstract

In order to study the pressure change with time at the blast face of the blast resistant wall when the shock wave acts on the blast resistant wall after the explosion of TNT explosive, the equivalent model of the blast resistant wall is designed based on the similarity theory, and the TNT near ground explosion test is carried out. During the test, the pressure change data of the design measuring point on the blast resistant wall with time are collected by high-speed data acquisition instrument and pressure sensor, The time history curve of shock wave overpressure was obtained by processing the data. Then, LS-DYNA finite element analysis software is used to establish a separate finite element model of the blast wall. At the same time, the relevant parameters of air, explosive, concrete and ground in the explosion field are set. The numerical simulation of the explosion field is carried out, and the overpressure time history curve at the measuring point is extracted by the finite element analysis post-processing software. Compared with the numerical simulation results, it is found that the numerical simulation results are in good agreement with the experimental data, which indicates that the selection and setting of parameters in the simulation calculation are reasonable. The model and algorithm provide an effective means for the numerical simulation of blast wall in the explosion field.

Published in	Science Discovery (Volume 9, Issue 3)
DOI	10.11648/j.sd.20210903.16
Page(s)	114-120
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

TNT, Explosion Shock Wave, Blast Wall, LS-DYNA

References

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APA Style

Zhu Gan, Ding Jianguo. (2021). Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method. Science Discovery, 9(3), 114-120. https://doi.org/10.11648/j.sd.20210903.16

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ACS Style

Zhu Gan; Ding Jianguo. Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method. Sci. Discov. 2021, 9(3), 114-120. doi: 10.11648/j.sd.20210903.16

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AMA Style

Zhu Gan, Ding Jianguo. Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method. Sci Discov. 2021;9(3):114-120. doi: 10.11648/j.sd.20210903.16

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@article{10.11648/j.sd.20210903.16,
  author = {Zhu Gan and Ding Jianguo},
  title = {Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method},
  journal = {Science Discovery},
  volume = {9},
  number = {3},
  pages = {114-120},
  doi = {10.11648/j.sd.20210903.16},
  url = {https://doi.org/10.11648/j.sd.20210903.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210903.16},
  abstract = {In order to study the pressure change with time at the blast face of the blast resistant wall when the shock wave acts on the blast resistant wall after the explosion of TNT explosive, the equivalent model of the blast resistant wall is designed based on the similarity theory, and the TNT near ground explosion test is carried out. During the test, the pressure change data of the design measuring point on the blast resistant wall with time are collected by high-speed data acquisition instrument and pressure sensor, The time history curve of shock wave overpressure was obtained by processing the data. Then, LS-DYNA finite element analysis software is used to establish a separate finite element model of the blast wall. At the same time, the relevant parameters of air, explosive, concrete and ground in the explosion field are set. The numerical simulation of the explosion field is carried out, and the overpressure time history curve at the measuring point is extracted by the finite element analysis post-processing software. Compared with the numerical simulation results, it is found that the numerical simulation results are in good agreement with the experimental data, which indicates that the selection and setting of parameters in the simulation calculation are reasonable. The model and algorithm provide an effective means for the numerical simulation of blast wall in the explosion field.},
 year = {2021}
}

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TY  - JOUR
T1  - Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method
AU  - Zhu Gan
AU  - Ding Jianguo
Y1  - 2021/05/24
PY  - 2021
N1  - https://doi.org/10.11648/j.sd.20210903.16
DO  - 10.11648/j.sd.20210903.16
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 114
EP  - 120
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20210903.16
AB  - In order to study the pressure change with time at the blast face of the blast resistant wall when the shock wave acts on the blast resistant wall after the explosion of TNT explosive, the equivalent model of the blast resistant wall is designed based on the similarity theory, and the TNT near ground explosion test is carried out. During the test, the pressure change data of the design measuring point on the blast resistant wall with time are collected by high-speed data acquisition instrument and pressure sensor, The time history curve of shock wave overpressure was obtained by processing the data. Then, LS-DYNA finite element analysis software is used to establish a separate finite element model of the blast wall. At the same time, the relevant parameters of air, explosive, concrete and ground in the explosion field are set. The numerical simulation of the explosion field is carried out, and the overpressure time history curve at the measuring point is extracted by the finite element analysis post-processing software. Compared with the numerical simulation results, it is found that the numerical simulation results are in good agreement with the experimental data, which indicates that the selection and setting of parameters in the simulation calculation are reasonable. The model and algorithm provide an effective means for the numerical simulation of blast wall in the explosion field.
VL  - 9
IS  - 3
ER  -

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Author Information

Zhu Gan

College of Science, Nanjing University of Scinece and Technology, Nanjing, China
Ding Jianguo

College of Science, Nanjing University of Scinece and Technology, Nanjing, China

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Plain Text BibTeX RIS

APA Style

Zhu Gan, Ding Jianguo. (2021). Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method. Science Discovery, 9(3), 114-120. https://doi.org/10.11648/j.sd.20210903.16

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ACS Style

Zhu Gan; Ding Jianguo. Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method. Sci. Discov. 2021, 9(3), 114-120. doi: 10.11648/j.sd.20210903.16

Copy | Download

AMA Style

Zhu Gan, Ding Jianguo. Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method. Sci Discov. 2021;9(3):114-120. doi: 10.11648/j.sd.20210903.16

Copy | Download

@article{10.11648/j.sd.20210903.16,
  author = {Zhu Gan and Ding Jianguo},
  title = {Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method},
  journal = {Science Discovery},
  volume = {9},
  number = {3},
  pages = {114-120},
  doi = {10.11648/j.sd.20210903.16},
  url = {https://doi.org/10.11648/j.sd.20210903.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210903.16},
  abstract = {In order to study the pressure change with time at the blast face of the blast resistant wall when the shock wave acts on the blast resistant wall after the explosion of TNT explosive, the equivalent model of the blast resistant wall is designed based on the similarity theory, and the TNT near ground explosion test is carried out. During the test, the pressure change data of the design measuring point on the blast resistant wall with time are collected by high-speed data acquisition instrument and pressure sensor, The time history curve of shock wave overpressure was obtained by processing the data. Then, LS-DYNA finite element analysis software is used to establish a separate finite element model of the blast wall. At the same time, the relevant parameters of air, explosive, concrete and ground in the explosion field are set. The numerical simulation of the explosion field is carried out, and the overpressure time history curve at the measuring point is extracted by the finite element analysis post-processing software. Compared with the numerical simulation results, it is found that the numerical simulation results are in good agreement with the experimental data, which indicates that the selection and setting of parameters in the simulation calculation are reasonable. The model and algorithm provide an effective means for the numerical simulation of blast wall in the explosion field.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Simulation Study on Blast Resistance Test of Blast Wall Based on LS-DYNA Coupling Method
AU  - Zhu Gan
AU  - Ding Jianguo
Y1  - 2021/05/24
PY  - 2021
N1  - https://doi.org/10.11648/j.sd.20210903.16
DO  - 10.11648/j.sd.20210903.16
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 114
EP  - 120
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20210903.16
AB  - In order to study the pressure change with time at the blast face of the blast resistant wall when the shock wave acts on the blast resistant wall after the explosion of TNT explosive, the equivalent model of the blast resistant wall is designed based on the similarity theory, and the TNT near ground explosion test is carried out. During the test, the pressure change data of the design measuring point on the blast resistant wall with time are collected by high-speed data acquisition instrument and pressure sensor, The time history curve of shock wave overpressure was obtained by processing the data. Then, LS-DYNA finite element analysis software is used to establish a separate finite element model of the blast wall. At the same time, the relevant parameters of air, explosive, concrete and ground in the explosion field are set. The numerical simulation of the explosion field is carried out, and the overpressure time history curve at the measuring point is extracted by the finite element analysis post-processing software. Compared with the numerical simulation results, it is found that the numerical simulation results are in good agreement with the experimental data, which indicates that the selection and setting of parameters in the simulation calculation are reasonable. The model and algorithm provide an effective means for the numerical simulation of blast wall in the explosion field.
VL  - 9
IS  - 3
ER  -

Copy | Download