Simulation of Quasi-Static Collapse of Granular Columns Using Smoothed Particle Hydrodynamics Method

Elnaz Kermani, Tong Qiu

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Granular column collapse has recently been an attractive topic of numerous experimental and numerical studies. Despite the importance of quasi-static collapse of granular construct (e.g., retaining structures), less focus has been dedicated toward simulation of this phenomenon compared to the dynamic granular collapse. This research tries to address this issue by simulating the quasi-static collapse of granular columns using the smoothed particle hydrodynamics method (SPH). The SPH rectangular columns are made of boxes with aspect ratios ranging 0.5-11. The slow movement of the side-wall of the box with a constant velocity triggers the quasi-static collapse. To model elastic-plastic soil behavior, the Drucker-Prager constitutive model with non-associated plastic flow rules is implemented into the SPH formulation. The dependency of flow pattern and final deposit profile (i.e., final height and runout distance) on initial aspect ratio, and sensitivity of the deposit profile to the wall velocity and material properties (e.g., friction angle) are investigated. The simulation results are compared with other experimental observations and numerical simulations available in literature.

Original languageEnglish (US)
Pages (from-to)237-247
Number of pages11
JournalGeotechnical Special Publication
Volume2018-March
Issue numberGSP 295
DOIs
StatePublished - Jan 1 2018
Event3rd International Foundation Congress and Equipment Expo 2018: Advances in Geomaterial Modeling and Site Characterization, IFCEE 2018 - Orlando, United States
Duration: Mar 5 2018Mar 10 2018

Fingerprint

Hydrodynamics
hydrodynamics
Aspect ratio
Deposits
simulation
plastic flow
Constitutive models
Plastic flow
flow pattern
Flow patterns
Materials properties
friction
plastic
Friction
Plastics
Soils
Computer simulation
method
particle
soil

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Cite this

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title = "Simulation of Quasi-Static Collapse of Granular Columns Using Smoothed Particle Hydrodynamics Method",
abstract = "Granular column collapse has recently been an attractive topic of numerous experimental and numerical studies. Despite the importance of quasi-static collapse of granular construct (e.g., retaining structures), less focus has been dedicated toward simulation of this phenomenon compared to the dynamic granular collapse. This research tries to address this issue by simulating the quasi-static collapse of granular columns using the smoothed particle hydrodynamics method (SPH). The SPH rectangular columns are made of boxes with aspect ratios ranging 0.5-11. The slow movement of the side-wall of the box with a constant velocity triggers the quasi-static collapse. To model elastic-plastic soil behavior, the Drucker-Prager constitutive model with non-associated plastic flow rules is implemented into the SPH formulation. The dependency of flow pattern and final deposit profile (i.e., final height and runout distance) on initial aspect ratio, and sensitivity of the deposit profile to the wall velocity and material properties (e.g., friction angle) are investigated. The simulation results are compared with other experimental observations and numerical simulations available in literature.",
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Simulation of Quasi-Static Collapse of Granular Columns Using Smoothed Particle Hydrodynamics Method. / Kermani, Elnaz; Qiu, Tong.

In: Geotechnical Special Publication, Vol. 2018-March, No. GSP 295, 01.01.2018, p. 237-247.

Research output: Contribution to journalConference article

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AU - Qiu, Tong

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N2 - Granular column collapse has recently been an attractive topic of numerous experimental and numerical studies. Despite the importance of quasi-static collapse of granular construct (e.g., retaining structures), less focus has been dedicated toward simulation of this phenomenon compared to the dynamic granular collapse. This research tries to address this issue by simulating the quasi-static collapse of granular columns using the smoothed particle hydrodynamics method (SPH). The SPH rectangular columns are made of boxes with aspect ratios ranging 0.5-11. The slow movement of the side-wall of the box with a constant velocity triggers the quasi-static collapse. To model elastic-plastic soil behavior, the Drucker-Prager constitutive model with non-associated plastic flow rules is implemented into the SPH formulation. The dependency of flow pattern and final deposit profile (i.e., final height and runout distance) on initial aspect ratio, and sensitivity of the deposit profile to the wall velocity and material properties (e.g., friction angle) are investigated. The simulation results are compared with other experimental observations and numerical simulations available in literature.

AB - Granular column collapse has recently been an attractive topic of numerous experimental and numerical studies. Despite the importance of quasi-static collapse of granular construct (e.g., retaining structures), less focus has been dedicated toward simulation of this phenomenon compared to the dynamic granular collapse. This research tries to address this issue by simulating the quasi-static collapse of granular columns using the smoothed particle hydrodynamics method (SPH). The SPH rectangular columns are made of boxes with aspect ratios ranging 0.5-11. The slow movement of the side-wall of the box with a constant velocity triggers the quasi-static collapse. To model elastic-plastic soil behavior, the Drucker-Prager constitutive model with non-associated plastic flow rules is implemented into the SPH formulation. The dependency of flow pattern and final deposit profile (i.e., final height and runout distance) on initial aspect ratio, and sensitivity of the deposit profile to the wall velocity and material properties (e.g., friction angle) are investigated. The simulation results are compared with other experimental observations and numerical simulations available in literature.

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