Strain characteristics and energy dissipation laws of gas-bearing coal during impact fracture process

X Kong, D He, X Liu, E Wang, S Li, T Liu, P Ji, D Deng… - Energy, 2022 - Elsevier
To reveal fracture mechanism of gas-bearing coal subjected to complex geology
environment, the impact dynamics experiments were conducted to study energy …

Macro–meso fracture and instability behaviors of hollow-cylinder granite containing fissures subjected to freeze–thaw–fatigue loads

Y Wang, Z Song, T Mao, C Zhu - Rock Mechanics and Rock Engineering, 2022 - Springer
Rock structural deterioration induced by coupled freeze–thaw and stress disturbance are a
great concern for jointed rock mass during rock constructions in cold regions. Previous …

Acoustic emission characteristics and failure mode analysis of rock failure under complex stress state

S Li, D Yang, Z Huang, Q Gu, K Zhao - Theoretical and Applied Fracture …, 2022 - Elsevier
To study the acoustic characteristics and failure mode of the rock failure process under a
complex stress state, acoustic emission (AE) monitoring technology was employed to collect …

Research progress and prospects of CO2 fracturing for developing unconventional energy sources

JH Gao, HY Wang, M Sharma - Geoenergy Science and Engineering, 2024 - Elsevier
As the world faces the challenges of meeting energy demand, reducing reliance on
conventional oil and gas resources, and improving global climate conditions, developing …

Damage evaluation of rock salt under multilevel cyclic loading with constant stress intervals using AE monitoring and CT scanning

K Zhao, H Ma, X Liang, X Li, Y Liu, R Cai, L Ye… - Journal of Petroleum …, 2022 - Elsevier
When salt caverns are used for the medium of underground energy storage, the surrounding
rock experiences cyclic loading due to periodical injection-production. The cyclic load …

Characterization of anisotropic mode II fracture behaviors of a typical layered rock combining AE and DIC techniques

ZD Fan, HP Xie, R Zhang, HJ Lu, Q Zhou, XF Nie… - Engineering Fracture …, 2022 - Elsevier
Shear-sliding mode fracture, ie, mode II fracture, is a very common rupture mode of layered
rocks. To achieve a better understanding of the anisotropy in the real mode II fracture, which …

Master crack types and typical acoustic emission characteristics during rock failure

T Zhao, P Zhang, Y Xiao, W Guo, Y Zhang… - International Journal of …, 2023 - Springer
Acoustic emission (AE) signals contain substantial information about the internal fracture
characteristics of rocks and are useful for revealing the laws governing the release of energy …

Characteristics of mixed-mode Ⅰ-Ⅱ fracture of bedding mud shale based on discrete element method

Y Suo, M Dong, Z Wang, J Gao, X Fu, Z Pan… - Journal of Petroleum …, 2022 - Elsevier
Mud shale is an abundant unconventional source of oil and gas, with considerable potential
for extensive exploration and development. Hydraulic fracturing is a core technology for the …

Study on crack classification criterion and failure evaluation index of red sandstone based on acoustic emission parameter analysis

J Li, S Lian, Y Huang, C Wang - Sustainability, 2022 - mdpi.com
The acoustic emission (AE) characteristics of rock during loading can reflect the law of crack
propagation and evolution in the rock. In order to study the fracture mode in the process of …

Experimental study on effects of cyclic loading paths on cracking behavior and fracture characteristics of granite

F Xue, Z Lin, T Wang - Engineering Fracture Mechanics, 2024 - Elsevier
To investigate the impact of cyclic loading paths on the Mode I fracture characteristics of
granite, a series of fracture tests were conducted on semi-circular bend (SCB) specimens …