On crack propagation in weak geomaterials: Revisiting the superdislocation model in the context of hydraulic fracture

M. Wrobel; M. Dutko; G. Mishuris; P. Papanastasiou

doi:10.1016/j.ijengsci.2023.103878

On crack propagation in weak geomaterials: Revisiting the superdislocation model in the context of hydraulic fracture

M. Wrobel^*, M. Dutko, G. Mishuris, P. Papanastasiou

^*Awdur cyfatebol y gwaith hwn

Adran Mathemateg

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

1 Dyfyniad (Scopus)

11 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

In this paper the problem of hydraulic fracture in elasto-plastic pressure sensitive material is analyzed. The superdislocation model is used to approximate the plastic deformations in the crack tip area. This model is employed to derive a new crack propagation condition based on the concept of effective fracture toughness. A parametric analysis supported by FEM simulations is conducted to verify the underlying assumptions of the superdislocation model and the resulting crack propagation condition. The results, obtained with the new crack propagation condition for the HF problem, are compared with those produced by a commercial geomechanical FEM package Elfen. The comparison proves the validity of the new crack propagation condition and the proposed modeling approach.

Iaith wreiddiol	Saesneg
Rhif yr erthygl	103878
Nifer y tudalennau	25
Cyfnodolyn	International Journal of Engineering Science
Cyfrol	191
Dyddiad ar-lein cynnar	09 Meh 2023
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1016/j.ijengsci.2023.103878
Statws	Cyhoeddwyd - 01 Hyd 2023

Mynediad at Ddogfen

10.1016/j.ijengsci.2023.103878

Accepted ManuscriptLlawysgrif awdur wedi’i dderbyn, 2.63 MBTrwydded: CC BY-NC-ND

Cysylltiad parhaol

Dolen barhaus

Ffeiliau eraill a chysylltiadau

Dolen i’r cyhoeddiad yn Scopus

2 Wedi Gorffen

Wolfson Visiting Fellowship - Professor Victor Eremeyev
Mishuris, G. (Prif Ymchwilydd)
The Royal Society
01 Gorff 2021 → 30 Meh 2023
Prosiect: Ymchwil a ariannwyd yn allanol
Ser Cymru IFA - Development of the tip element to account for singular physical fields near the crack tip and various propagation regimes.
Mishuris, G. (Prif Ymchwilydd)
WEFO
01 Gorff 2020 → 30 Meh 2021
Prosiect: Ymchwil a ariannwyd yn allanol

Dyfynnu hyn

@article{49a758c832e64f8da8fd81bfbb8eba6f,

title = "On crack propagation in weak geomaterials: Revisiting the superdislocation model in the context of hydraulic fracture",

abstract = "In this paper the problem of hydraulic fracture in elasto-plastic pressure sensitive material is analyzed. The superdislocation model is used to approximate the plastic deformations in the crack tip area. This model is employed to derive a new crack propagation condition based on the concept of effective fracture toughness. A parametric analysis supported by FEM simulations is conducted to verify the underlying assumptions of the superdislocation model and the resulting crack propagation condition. The results, obtained with the new crack propagation condition for the HF problem, are compared with those produced by a commercial geomechanical FEM package Elfen. The comparison proves the validity of the new crack propagation condition and the proposed modeling approach.",

keywords = "Hydraulic fracture, Mohr–Coulomb model, Plane strain crack, Plastic deformation, Superdislocation",

author = "M. Wrobel and M. Dutko and G. Mishuris and P. Papanastasiou",

note = "Funding Information: M. W. thanks Prof. Andrea Nobili for fruitful discussions and the hospitality during the secondment to UNIMORE (Italy). G. M. acknowledges Wolfson Research Merit Award from the Royal Society, M. D. is thankful for the Industrial Fellowship from the Royal Academy of Engineering. P. P. acknowledges the funding from European Regional Development Fund and the Republic of Cyprus through the Research Promotion Foundation (RESTART 2016–2020 PROGRAMMES, Excellence Hubs, Project EXCELLENCE/0421/0456). M. W. gratefully acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101008140 EffectFact. M. D. and G. M. would like to thank Ser-Cymru II Research Programme by Welsh Government supported by European Regional Development Fund. Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = oct,

day = "1",

doi = "10.1016/j.ijengsci.2023.103878",

language = "English",

volume = "191",

journal = "International Journal of Engineering Science",

issn = "0020-7225",

publisher = "Elsevier",

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T1 - On crack propagation in weak geomaterials

T2 - Revisiting the superdislocation model in the context of hydraulic fracture

AU - Wrobel, M.

AU - Dutko, M.

AU - Mishuris, G.

AU - Papanastasiou, P.

N1 - Funding Information: M. W. thanks Prof. Andrea Nobili for fruitful discussions and the hospitality during the secondment to UNIMORE (Italy). G. M. acknowledges Wolfson Research Merit Award from the Royal Society, M. D. is thankful for the Industrial Fellowship from the Royal Academy of Engineering. P. P. acknowledges the funding from European Regional Development Fund and the Republic of Cyprus through the Research Promotion Foundation (RESTART 2016–2020 PROGRAMMES, Excellence Hubs, Project EXCELLENCE/0421/0456). M. W. gratefully acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101008140 EffectFact. M. D. and G. M. would like to thank Ser-Cymru II Research Programme by Welsh Government supported by European Regional Development Fund. Publisher Copyright: © 2023 Elsevier Ltd

PY - 2023/10/1

Y1 - 2023/10/1

N2 - In this paper the problem of hydraulic fracture in elasto-plastic pressure sensitive material is analyzed. The superdislocation model is used to approximate the plastic deformations in the crack tip area. This model is employed to derive a new crack propagation condition based on the concept of effective fracture toughness. A parametric analysis supported by FEM simulations is conducted to verify the underlying assumptions of the superdislocation model and the resulting crack propagation condition. The results, obtained with the new crack propagation condition for the HF problem, are compared with those produced by a commercial geomechanical FEM package Elfen. The comparison proves the validity of the new crack propagation condition and the proposed modeling approach.

AB - In this paper the problem of hydraulic fracture in elasto-plastic pressure sensitive material is analyzed. The superdislocation model is used to approximate the plastic deformations in the crack tip area. This model is employed to derive a new crack propagation condition based on the concept of effective fracture toughness. A parametric analysis supported by FEM simulations is conducted to verify the underlying assumptions of the superdislocation model and the resulting crack propagation condition. The results, obtained with the new crack propagation condition for the HF problem, are compared with those produced by a commercial geomechanical FEM package Elfen. The comparison proves the validity of the new crack propagation condition and the proposed modeling approach.

KW - Hydraulic fracture

KW - Mohr–Coulomb model

KW - Plane strain crack

KW - Plastic deformation

KW - Superdislocation

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DO - 10.1016/j.ijengsci.2023.103878

M3 - Article

AN - SCOPUS:85161671978

SN - 0020-7225

VL - 191

JO - International Journal of Engineering Science

JF - International Journal of Engineering Science

M1 - 103878

ER -

On crack propagation in weak geomaterials: Revisiting the superdislocation model in the context of hydraulic fracture

Crynodeb

Mynediad at Ddogfen

Cysylltiad parhaol

Ffeiliau eraill a chysylltiadau

Ôl bys

Prosiectau

Wolfson Visiting Fellowship - Professor Victor Eremeyev

Ser Cymru IFA - Development of the tip element to account for singular physical fields near the crack tip and various propagation regimes.

Dyfynnu hyn