A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on Dynamic Response of Buried Pipeline Under Explosion Load Based on SPH-FEM Method
Numerical simulation research on pipelines subjected to explosion impact basically turns to ALE. Yet it suffers from unclear interfaces between flowing materials and fails to value the impact of soil compression state and pipe-soil sliding on pipeline stress. To streamline calculation and better demonstrate the damage process of soil under explosion load, this study applies SPH-FEM coupling to study the dynamic response of buried pipelines under explosion load, and compares results of this study with experimental results of Ambrosini et al., and good consistency was observed. This study dissects the dynamic response of the buried X65 pipeline under explosion load, considers the influence of different diameter-thickness ratios of the pipeline and the distance from the explosion, and compares the simulation results in virtue of numerical analysis. SPH-FEM coupling intuitively simulates the entire development process of explosion craters under the action of explosion load, and handles the SPH boundary problem well, found study outcomes. As the diameter-thickness ratio of the pipeline decreases and the explosion distance increases, the deformation and maximum equivalent strain of the pipeline gradually decreases, and the impact of the explosion distance is much greater than the diameter-thickness ratio. This study offers reference for upgrading the protection design of steel pipes.
Research on Dynamic Response of Buried Pipeline Under Explosion Load Based on SPH-FEM Method
Numerical simulation research on pipelines subjected to explosion impact basically turns to ALE. Yet it suffers from unclear interfaces between flowing materials and fails to value the impact of soil compression state and pipe-soil sliding on pipeline stress. To streamline calculation and better demonstrate the damage process of soil under explosion load, this study applies SPH-FEM coupling to study the dynamic response of buried pipelines under explosion load, and compares results of this study with experimental results of Ambrosini et al., and good consistency was observed. This study dissects the dynamic response of the buried X65 pipeline under explosion load, considers the influence of different diameter-thickness ratios of the pipeline and the distance from the explosion, and compares the simulation results in virtue of numerical analysis. SPH-FEM coupling intuitively simulates the entire development process of explosion craters under the action of explosion load, and handles the SPH boundary problem well, found study outcomes. As the diameter-thickness ratio of the pipeline decreases and the explosion distance increases, the deformation and maximum equivalent strain of the pipeline gradually decreases, and the impact of the explosion distance is much greater than the diameter-thickness ratio. This study offers reference for upgrading the protection design of steel pipes.
Research on Dynamic Response of Buried Pipeline Under Explosion Load Based on SPH-FEM Method
Lecture Notes in Civil Engineering
Tuns, Ioan (editor) / Muntean, Radu (editor) / Radu, Dorin (editor) / Cazacu, Christiana (editor) / Gălățanu, Teofil (editor) / Qi, Baoxin (author) / Yang, Fan (author) / He, Haoxiang (author)
International Scientific Conference Civil Engineering and Buildings Services ; 2023 ; Brașov, Romania
2024-05-19
12 pages
Article/Chapter (Book)
Electronic Resource
English
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