Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process
The dynamics of debris flow impact considering the material source erosion-entrainment process is analyzed using a coupled SPH-DEM-FEM method. A complex coupled dynamic model of a debris flow, the erodible material source, and a rigid barrier is established in this paper. The applicability of the co...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2023.1132635/full |
| _version_ | 1811173504078315520 |
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| author | Bailong Li Bailong Li Bailong Li Youliang Fang Youliang Fang Youliang Fang Yanying Li Chun Zhu |
| author_facet | Bailong Li Bailong Li Bailong Li Youliang Fang Youliang Fang Youliang Fang Yanying Li Chun Zhu |
| author_sort | Bailong Li |
| collection | DOAJ |
| description | The dynamics of debris flow impact considering the material source erosion-entrainment process is analyzed using a coupled SPH-DEM-FEM method. A complex coupled dynamic model of a debris flow, the erodible material source, and a rigid barrier is established in this paper. The applicability of the coupled SPH-DEM-FEM method for calculating the impact force of debris flow on the rigid barrier is verified by comparing the model with the laboratory test. The strain softening model is used to simulate the process from solid state to transition state and finally to liquid state of erodible material source. The impact force caused by debris flow considering the source erosion-entrainment process and the dynamic response of a rigid barrier is also analyzed. The results show that the volume of debris fluid, impact force, and dynamic response of a rigid barrier considering source erosion–entrainment are significantly greater than those of the original model. According to the calculation results, the existing formula for the impact force of a debris flow is then modified. The coupled numerical analysis method and the calculated results help to clarify the influence of erosion-entrainment, modify the calculation of the impact force of debris flow, and optimize the design of the rigid barrier. |
| first_indexed | 2024-04-10T17:49:07Z |
| format | Article |
| id | doaj.art-dbd57a0f8b79402da3de2ab5ce2d2f6e |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T17:49:07Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-dbd57a0f8b79402da3de2ab5ce2d2f6e2023-02-03T04:35:46ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-02-011110.3389/feart.2023.11326351132635Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment processBailong Li0Bailong Li1Bailong Li2Youliang Fang3Youliang Fang4Youliang Fang5Yanying Li6Chun Zhu7College of Civil Engineering and Architecture, Hebei University, Baoding, ChinaHebei Civil Engineering Monitoring and Evaluation Technology Innovation Center, Baoding, ChinaEngineering Research Center of Zero-Carbon Energy Buildings and Measurement Techniques, Ministry of Education, Baoding, ChinaCollege of Civil Engineering and Architecture, Hebei University, Baoding, ChinaHebei Civil Engineering Monitoring and Evaluation Technology Innovation Center, Baoding, ChinaEngineering Research Center of Zero-Carbon Energy Buildings and Measurement Techniques, Ministry of Education, Baoding, ChinaCollege of Construction Engineering, Jilin University, Changchun, ChinaSchool of Earth Sciences and Engineering, Hohai University, Nanjing, ChinaThe dynamics of debris flow impact considering the material source erosion-entrainment process is analyzed using a coupled SPH-DEM-FEM method. A complex coupled dynamic model of a debris flow, the erodible material source, and a rigid barrier is established in this paper. The applicability of the coupled SPH-DEM-FEM method for calculating the impact force of debris flow on the rigid barrier is verified by comparing the model with the laboratory test. The strain softening model is used to simulate the process from solid state to transition state and finally to liquid state of erodible material source. The impact force caused by debris flow considering the source erosion-entrainment process and the dynamic response of a rigid barrier is also analyzed. The results show that the volume of debris fluid, impact force, and dynamic response of a rigid barrier considering source erosion–entrainment are significantly greater than those of the original model. According to the calculation results, the existing formula for the impact force of a debris flow is then modified. The coupled numerical analysis method and the calculated results help to clarify the influence of erosion-entrainment, modify the calculation of the impact force of debris flow, and optimize the design of the rigid barrier.https://www.frontiersin.org/articles/10.3389/feart.2023.1132635/fullerosion-entrainmentSPH-DEM-FEMrigid barrierdebris flow-induced impactingdynamic response analysis |
| spellingShingle | Bailong Li Bailong Li Bailong Li Youliang Fang Youliang Fang Youliang Fang Yanying Li Chun Zhu Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process Frontiers in Earth Science erosion-entrainment SPH-DEM-FEM rigid barrier debris flow-induced impacting dynamic response analysis |
| title | Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process |
| title_full | Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process |
| title_fullStr | Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process |
| title_full_unstemmed | Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process |
| title_short | Dynamics of debris flow-induced impacting onto rigid barrier with material source erosion-entrainment process |
| title_sort | dynamics of debris flow induced impacting onto rigid barrier with material source erosion entrainment process |
| topic | erosion-entrainment SPH-DEM-FEM rigid barrier debris flow-induced impacting dynamic response analysis |
| url | https://www.frontiersin.org/articles/10.3389/feart.2023.1132635/full |
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