Crater effects of shallow burial explosions in soil based on SPH-FEM analysis
This study analyzed the effects and influencing factors of shallowly-buried explosions in soil based on the design and implementation of static explosion experiments and numerical simulations. Based on the static explosion test data, a numerical analysis model of SPH-FEM was established and the expl...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.1114178/full |
| _version_ | 1797955390611128320 |
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| author | Ying Cui Ying Cui Zhangjian Li Jun Fang Ben Zhao |
| author_facet | Ying Cui Ying Cui Zhangjian Li Jun Fang Ben Zhao |
| author_sort | Ying Cui |
| collection | DOAJ |
| description | This study analyzed the effects and influencing factors of shallowly-buried explosions in soil based on the design and implementation of static explosion experiments and numerical simulations. Based on the static explosion test data, a numerical analysis model of SPH-FEM was established and the explosion process and pit parameters in explosions shallowly buried in soil were analyzed. The results of numerical calculations and comparisons verified the effectiveness of the SPH-FEM method in simulating shallowly-buried explosions in soil. Furthermore, the similarities and differences between the SPH-FEM and ALE methods in the numerical simulation of the same explosion in the soil were assessed. The relationships between the blasting pit radius and explosive depth, and between the explosives weight and pit volume were analyzed. The empirical curve formula of the explosive depth and the crater radius with 9.35 kg of TNT explosive were obtained by mathematical fitting. The results showed that the SPH-FEM method was more refined and more computationally efficient than the ALE method to simulate shallow burial explosions in soil. The established empirical curve formula, which expressed the relationship between the explosive burial depth and the pit radius, effectively predicted the pit radius of the shallow burial explosion. With increasing explosive burial depth, the pit radius increased to the peak value and then decreased rapidly. |
| first_indexed | 2024-04-10T23:32:22Z |
| format | Article |
| id | doaj.art-f83265e9b4be41ad878d94c16d407287 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T23:32:22Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-f83265e9b4be41ad878d94c16d4072872023-01-12T05:24:38ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-01-011010.3389/feart.2022.11141781114178Crater effects of shallow burial explosions in soil based on SPH-FEM analysisYing Cui0Ying Cui1Zhangjian Li2Jun Fang3Ben Zhao4Civil Engineering College, Xi’ an Shiyou University, Xi’an, ChinaThe Key Laboratory of Well Stability and Fluid and Rock Mechanics in Oil and Gas Reservoir of Shaanxi Province, Xi’an, ChinaMechanical Engineering College, Xi’an Shiyou University, Xi’an, ChinaMechanical Engineering College, Xi’an Shiyou University, Xi’an, ChinaMechanical Engineering College, Xi’an Shiyou University, Xi’an, ChinaThis study analyzed the effects and influencing factors of shallowly-buried explosions in soil based on the design and implementation of static explosion experiments and numerical simulations. Based on the static explosion test data, a numerical analysis model of SPH-FEM was established and the explosion process and pit parameters in explosions shallowly buried in soil were analyzed. The results of numerical calculations and comparisons verified the effectiveness of the SPH-FEM method in simulating shallowly-buried explosions in soil. Furthermore, the similarities and differences between the SPH-FEM and ALE methods in the numerical simulation of the same explosion in the soil were assessed. The relationships between the blasting pit radius and explosive depth, and between the explosives weight and pit volume were analyzed. The empirical curve formula of the explosive depth and the crater radius with 9.35 kg of TNT explosive were obtained by mathematical fitting. The results showed that the SPH-FEM method was more refined and more computationally efficient than the ALE method to simulate shallow burial explosions in soil. The established empirical curve formula, which expressed the relationship between the explosive burial depth and the pit radius, effectively predicted the pit radius of the shallow burial explosion. With increasing explosive burial depth, the pit radius increased to the peak value and then decreased rapidly.https://www.frontiersin.org/articles/10.3389/feart.2022.1114178/fullshallow burial explosionstatic explosion testSPH-FEM methodnumerical simulationcrater parameter |
| spellingShingle | Ying Cui Ying Cui Zhangjian Li Jun Fang Ben Zhao Crater effects of shallow burial explosions in soil based on SPH-FEM analysis Frontiers in Earth Science shallow burial explosion static explosion test SPH-FEM method numerical simulation crater parameter |
| title | Crater effects of shallow burial explosions in soil based on SPH-FEM analysis |
| title_full | Crater effects of shallow burial explosions in soil based on SPH-FEM analysis |
| title_fullStr | Crater effects of shallow burial explosions in soil based on SPH-FEM analysis |
| title_full_unstemmed | Crater effects of shallow burial explosions in soil based on SPH-FEM analysis |
| title_short | Crater effects of shallow burial explosions in soil based on SPH-FEM analysis |
| title_sort | crater effects of shallow burial explosions in soil based on sph fem analysis |
| topic | shallow burial explosion static explosion test SPH-FEM method numerical simulation crater parameter |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.1114178/full |
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