A unified nonlinear yield criterion for fracture and fault slip in quasi-brittle rocks

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A unified nonlinear yield criterion for fracture and fault slip in quasi-brittle rocks. / You, Tao; Zhao, Lun Yang.
In: European Journal of Mechanics, A/Solids, Vol. 108.2024, No. November-December, 105411, 01.11.2024.

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You T, Zhao LY. A unified nonlinear yield criterion for fracture and fault slip in quasi-brittle rocks. European Journal of Mechanics, A/Solids. 2024 Nov 1;108.2024(November-December):105411. Epub 2024 Jul 31. doi: 10.1016/j.euromechsol.2024.105411

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@article{24cd5e811ef04a1c96e2be43b9ec5fa1,
title = "A unified nonlinear yield criterion for fracture and fault slip in quasi-brittle rocks",
abstract = "The micromechanical damage model has been developed to better describe multiscale fracture behavior in quasi-brittle rocks. While the deduced yield criterion under tension and compression has been carefully investigated in different stress spaces, it fails to capture a smooth transition from extension to shear fracture and overestimates the tensile strength of the rock. This paper introduces a unified nonlinear yield criterion based on a stress-dependent fracture energy parameter. In particular, the effect of the intermediate principal stress is encapsulated. The proposed yield criterion is then validated in the principal stress space based on a detailed parameter calibration procedure. Subsequently, four verification examples corresponding to Beishan granite, Lac du Bonnect granite, Carrara marble and Berea sandstone are carried out to show a desirable predictive capacity of the proposed yield criterion on progressive failure, extension to compressive-shear fracture transition and fault slip in quasi-brittle rocks.",
keywords = "Fault slip, Microcracks, Micromechanics, Nonlinear yield criterion, Quasi-brittle rock, Shear fracture",
author = "Tao You and Zhao, {Lun Yang}",
note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Masson SAS",
year = "2024",
month = nov,
day = "1",
doi = "10.1016/j.euromechsol.2024.105411",
language = "English",
volume = "108.2024",
journal = "European Journal of Mechanics, A/Solids",
issn = "0997-7538",
publisher = "Elsevier",
number = "November-December",

}

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TY - JOUR

T1 - A unified nonlinear yield criterion for fracture and fault slip in quasi-brittle rocks

AU - You, Tao

AU - Zhao, Lun Yang

N1 - Publisher Copyright: © 2024 Elsevier Masson SAS

PY - 2024/11/1

Y1 - 2024/11/1

N2 - The micromechanical damage model has been developed to better describe multiscale fracture behavior in quasi-brittle rocks. While the deduced yield criterion under tension and compression has been carefully investigated in different stress spaces, it fails to capture a smooth transition from extension to shear fracture and overestimates the tensile strength of the rock. This paper introduces a unified nonlinear yield criterion based on a stress-dependent fracture energy parameter. In particular, the effect of the intermediate principal stress is encapsulated. The proposed yield criterion is then validated in the principal stress space based on a detailed parameter calibration procedure. Subsequently, four verification examples corresponding to Beishan granite, Lac du Bonnect granite, Carrara marble and Berea sandstone are carried out to show a desirable predictive capacity of the proposed yield criterion on progressive failure, extension to compressive-shear fracture transition and fault slip in quasi-brittle rocks.

AB - The micromechanical damage model has been developed to better describe multiscale fracture behavior in quasi-brittle rocks. While the deduced yield criterion under tension and compression has been carefully investigated in different stress spaces, it fails to capture a smooth transition from extension to shear fracture and overestimates the tensile strength of the rock. This paper introduces a unified nonlinear yield criterion based on a stress-dependent fracture energy parameter. In particular, the effect of the intermediate principal stress is encapsulated. The proposed yield criterion is then validated in the principal stress space based on a detailed parameter calibration procedure. Subsequently, four verification examples corresponding to Beishan granite, Lac du Bonnect granite, Carrara marble and Berea sandstone are carried out to show a desirable predictive capacity of the proposed yield criterion on progressive failure, extension to compressive-shear fracture transition and fault slip in quasi-brittle rocks.

KW - Fault slip

KW - Microcracks

KW - Micromechanics

KW - Nonlinear yield criterion

KW - Quasi-brittle rock

KW - Shear fracture

UR - http://www.scopus.com/inward/record.url?scp=85200459447&partnerID=8YFLogxK

U2 - 10.1016/j.euromechsol.2024.105411

DO - 10.1016/j.euromechsol.2024.105411

M3 - Article

AN - SCOPUS:85200459447

VL - 108.2024

JO - European Journal of Mechanics, A/Solids

JF - European Journal of Mechanics, A/Solids

SN - 0997-7538

IS - November-December

M1 - 105411

ER -