A time-to-fracture DEM model for simulating creep in rough crushable sand

Jiangtao Lei; Marcos Arroyo; Matteo Ciantia; Ningning Zhang

doi:10.53243/NUMGE2023-37

A time-to-fracture DEM model for simulating creep in rough crushable sand

Jiangtao Lei, Marcos Arroyo, Matteo Ciantia, Ningning Zhang

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

A contact model able to capture creep of crushable sands within a discrete element method (DEM) framework is presented. Time dependency is established through stress-corrosion induced grain fracture. This is grafted onto a pre-existing particle-splitting model developed to simulate rough-crushable sands. The model is calibrated for Fontainebleau sand and applied to simulate soil creep at high-confining pressures. Creep simulation is advanced using the off-DEM ageing technique. The crack-velocity evolution in particle scale and laboratory oedometer creep curve were successfully captured. Moreover, the onset of creep failure during triaxial creep curve under high deviatoric stress can also be simulated using this model. The results obtained indicate significant potential of this model for micromechanically based investigation of time-dependent soil behaviour.

Original language	English
Title of host publication	Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering
Editors	Lidija Zdravkovic, Stavroula Kontoe, Aikaterini Tsiampousi, David Taborda
Place of Publication	London
Publisher	International Society for Soil Mechanics and Geotechnical Engineering
Number of pages	6
DOIs	https://doi.org/10.53243/NUMGE2023-37
Publication status	Published - 26 Jun 2023
Event	10th European Conference on Numerical Methods in Geotechnical Engineering - Imperial College London, London, United Kingdom Duration: 26 Jun 2023 → 28 Jun 2023

Conference

Conference	10th European Conference on Numerical Methods in Geotechnical Engineering
Country/Territory	United Kingdom
City	London
Period	26/06/23 → 28/06/23

Keywords

DEM simulation
Sand creep
Particle breakage
Crack propagation
Off-DEM ageing

Access to Document

10.53243/NUMGE2023-37

Final Published VersionFinal published version, 945 KB

4 Conference contribution

DEM analysis of helix number effects on offshore screw pile installation and in-service performance
Wang, W., Brown, M. J., Ciantia, M. O., Sharif, Y. U. & Cerfontaine, B., 26 Jun 2023, Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. Zdravkovic, L., Kontoe, S., Tsiampousi, A. & Taborda, D. (eds.). London: International Society for Soil Mechanics and Geotechnical Engineering, 6 p. 217
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File
166 Downloads (Pure)
DEM modelling of screw piles as foundations for floating offshore wind turbines
Cerfontaine, B., Ciantia, M., Brown, M. & Sharif, Y., 26 Jun 2023, Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. Zdravkovic, L., Kontoe, S., Tsiampousi, A. & Taborda, D. (eds.). London: International Society for Soil Mechanics and Geotechnical Engineering, 6 p. 11
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File
187 Downloads (Pure)
Large deformation numerical analysis of rock permeability influence on anchor performance for offshore renewable applications
Genco, A., Ciantia, M. O., Brown, M., Previtali, M., Ivanovic, A. & Cresswell, N., 26 Jun 2023, Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. Zdravkovic, L., Kontoe, S., Tsiampousi, A. & Taborda, D. (eds.). London: International Society for Soil Mechanics and Geotechnical Engineering, 6 p. 112
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File
103 Downloads (Pure)

Cite this

Lei, J., Arroyo, M., Ciantia, M., & Zhang, N. (2023). A time-to-fracture DEM model for simulating creep in rough crushable sand. In L. Zdravkovic, S. Kontoe, A. Tsiampousi, & D. Taborda (Eds.), Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering Article 37 International Society for Soil Mechanics and Geotechnical Engineering. https://doi.org/10.53243/NUMGE2023-37

Lei, Jiangtao ; Arroyo, Marcos ; Ciantia, Matteo et al. / A time-to-fracture DEM model for simulating creep in rough crushable sand. Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. editor / Lidija Zdravkovic ; Stavroula Kontoe ; Aikaterini Tsiampousi ; David Taborda. London : International Society for Soil Mechanics and Geotechnical Engineering, 2023.

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title = "A time-to-fracture DEM model for simulating creep in rough crushable sand",

abstract = "A contact model able to capture creep of crushable sands within a discrete element method (DEM) framework is presented. Time dependency is established through stress-corrosion induced grain fracture. This is grafted onto a pre-existing particle-splitting model developed to simulate rough-crushable sands. The model is calibrated for Fontainebleau sand and applied to simulate soil creep at high-confining pressures. Creep simulation is advanced using the off-DEM ageing technique. The crack-velocity evolution in particle scale and laboratory oedometer creep curve were successfully captured. Moreover, the onset of creep failure during triaxial creep curve under high deviatoric stress can also be simulated using this model. The results obtained indicate significant potential of this model for micromechanically based investigation of time-dependent soil behaviour.",

keywords = "DEM simulation, Sand creep, Particle breakage, Crack propagation, Off-DEM ageing",

author = "Jiangtao Lei and Marcos Arroyo and Matteo Ciantia and Ningning Zhang",

note = "Funding Information: The first author has received support from the Chinese Government Scholarship. (CSC No.202108390006) Spanish Research Agency support (AEI) through research project PID2020-119598RB-I00 is also acknowledged. Copyright: {\textcopyright} Authors: All rights reserved, 2023.; 10th European Conference on Numerical Methods in Geotechnical Engineering ; Conference date: 26-06-2023 Through 28-06-2023",

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Lei, J, Arroyo, M, Ciantia, M & Zhang, N 2023, A time-to-fracture DEM model for simulating creep in rough crushable sand. in L Zdravkovic, S Kontoe, A Tsiampousi & D Taborda (eds), Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering., 37, International Society for Soil Mechanics and Geotechnical Engineering, London, 10th European Conference on Numerical Methods in Geotechnical Engineering, London, United Kingdom, 26/06/23. https://doi.org/10.53243/NUMGE2023-37

A time-to-fracture DEM model for simulating creep in rough crushable sand. / Lei, Jiangtao; Arroyo, Marcos; Ciantia, Matteo et al.
Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. ed. / Lidija Zdravkovic; Stavroula Kontoe; Aikaterini Tsiampousi; David Taborda. London: International Society for Soil Mechanics and Geotechnical Engineering, 2023. 37.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A time-to-fracture DEM model for simulating creep in rough crushable sand

AU - Lei, Jiangtao

AU - Arroyo, Marcos

AU - Ciantia, Matteo

AU - Zhang, Ningning

N1 - Funding Information: The first author has received support from the Chinese Government Scholarship. (CSC No.202108390006) Spanish Research Agency support (AEI) through research project PID2020-119598RB-I00 is also acknowledged. Copyright: © Authors: All rights reserved, 2023.

PY - 2023/6/26

Y1 - 2023/6/26

N2 - A contact model able to capture creep of crushable sands within a discrete element method (DEM) framework is presented. Time dependency is established through stress-corrosion induced grain fracture. This is grafted onto a pre-existing particle-splitting model developed to simulate rough-crushable sands. The model is calibrated for Fontainebleau sand and applied to simulate soil creep at high-confining pressures. Creep simulation is advanced using the off-DEM ageing technique. The crack-velocity evolution in particle scale and laboratory oedometer creep curve were successfully captured. Moreover, the onset of creep failure during triaxial creep curve under high deviatoric stress can also be simulated using this model. The results obtained indicate significant potential of this model for micromechanically based investigation of time-dependent soil behaviour.

AB - A contact model able to capture creep of crushable sands within a discrete element method (DEM) framework is presented. Time dependency is established through stress-corrosion induced grain fracture. This is grafted onto a pre-existing particle-splitting model developed to simulate rough-crushable sands. The model is calibrated for Fontainebleau sand and applied to simulate soil creep at high-confining pressures. Creep simulation is advanced using the off-DEM ageing technique. The crack-velocity evolution in particle scale and laboratory oedometer creep curve were successfully captured. Moreover, the onset of creep failure during triaxial creep curve under high deviatoric stress can also be simulated using this model. The results obtained indicate significant potential of this model for micromechanically based investigation of time-dependent soil behaviour.

KW - DEM simulation

KW - Sand creep

KW - Particle breakage

KW - Crack propagation

KW - Off-DEM ageing

U2 - 10.53243/NUMGE2023-37

DO - 10.53243/NUMGE2023-37

M3 - Conference contribution

BT - Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering

A2 - Zdravkovic, Lidija

A2 - Kontoe, Stavroula

A2 - Tsiampousi, Aikaterini

A2 - Taborda, David

PB - International Society for Soil Mechanics and Geotechnical Engineering

CY - London

T2 - 10th European Conference on Numerical Methods in Geotechnical Engineering

Y2 - 26 June 2023 through 28 June 2023

ER -

Lei J, Arroyo M, Ciantia M, Zhang N. A time-to-fracture DEM model for simulating creep in rough crushable sand. In Zdravkovic L, Kontoe S, Tsiampousi A, Taborda D, editors, Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. London: International Society for Soil Mechanics and Geotechnical Engineering. 2023. 37 doi: 10.53243/NUMGE2023-37

A time-to-fracture DEM model for simulating creep in rough crushable sand

Abstract

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Keywords

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Research output

DEM analysis of helix number effects on offshore screw pile installation and in-service performance

DEM modelling of screw piles as foundations for floating offshore wind turbines

Large deformation numerical analysis of rock permeability influence on anchor performance for offshore renewable applications

Cite this