Experimental study on rock mechanical behavior retaining the in situ geological conditions at different depths

H Xie, C Li, Z He, C Li, Y Lu, R Zhang, M Gao… - International Journal of …, 2021 - Elsevier
Understanding the real physical and mechanical characteristics of deep rocks under in situ
geological conditions is fundamental for deep rock engineering. Rock mechanics that …

[HTML][HTML] Anisotropic time-dependent behaviors of shale under direct shearing and associated empirical creep models

Y Xie, MZ Hou, H Liu, C Li - Journal of Rock Mechanics and Geotechnical …, 2024 - Elsevier
Understanding the anisotropic creep behaviors of shale under direct shearing is a
challenging issue. In this context, we conducted shear-creep and steady-creep tests on …

A double-yield-surface plasticity theory for transversely isotropic rocks

Y Zhao, RI Borja - Acta Geotechnica, 2022 - Springer
We present a double-yield-surface plasticity theory for transversely isotropic rocks that
distinguishes between plastic deformation through the solid matrix and localized plasticity …

Experimental investigation of anisotropic fatigue characteristics of shale under uniaxial cyclic loading

C Li, C Gao, H Xie, N Li - International Journal of Rock Mechanics and …, 2020 - Elsevier
The influence of combining the inherent anisotropy and fatigue loading on shale's
mechanical behaviors is rarely investigated. To study the anisotropic fatigue behaviors of …

Study on the nonlinear time-dependent deformation characteristics and viscoelastic-plastic model of shale under direct shear loading path

C Ye, H Xie, F Wu, C Li - Bulletin of Engineering Geology and the …, 2023 - Springer
The time-dependent deformation of shale under shear load is a crucial factor affecting
reservoir fracture closure. This study performed systematic conventional direct shear tests …

A microplane-based anisotropic damage model for deformation and fracturing of brittle rocks

Y Yuan, T Xu, PG Meredith, TM Mitchell… - Rock Mechanics and …, 2023 - Springer
Anisotropy is an important property that is widely present in crustal rocks. Efforts have been
devoted to providing a constitutive model that can describe both inherent and stress-induced …

Comparative and modeling study of the difference in failure mechanisms of cyclic and monotonic pneumatic fracturing of granite

C Li, B Liu, H Xie, J Hu, X Long - Geothermics, 2024 - Elsevier
This paper conducted comparative tests of cyclic and monotonic pneumatic fracturing under
three stress limits. The granite fracture initiation pressure is reduced by 18%–25% under …

A nonlocal microplane approach to model textile reinforced concrete at finite deformations

J Platen, I Zreid, M Kaliske - International Journal of Solids and Structures, 2023 - Elsevier
The contribution at hand focuses on the introduction of a new constitutive approach at finite
deformations to represent an initially anisotropic material behavior accounting for fibers …

[HTML][HTML] Modelling underground excavations in rock masses with anisotropic time-dependent behaviour

F Song, A Rodriguez-Dono… - … and Geophysics for Geo …, 2022 - Springer
When modelling rock masses that behave anisotropically and in addition present a time
dependent behaviour, it is relevant to select a constitutive model able to represent their …

Sprain energy consequences for damage localization and fracture mechanics

H Xu, AT Nguyen, ZP Bažant - Proceedings of the National Academy of …, 2024 - pnas.org
The 2023 smooth Lagrangian Crack-Band Model (slCBM), inspired by the 2020 invention of
the gap test, prevented spurious damage localization during fracture growth by introducing …