A review of the effects of weak interfaces on crack propagation in rock: From phenomenon to mechanism

M Ju, X Li, X Li, G Zhang - Engineering Fracture Mechanics, 2022 - Elsevier
This article reviews the effect of weak interfaces on crack propagation in rock and some
other analogous brittle materials from phenomenon to mechanism. In this review, a variety of …

[HTML][HTML] Grain-based DEM modelling of mechanical and coupled hydro-mechanical behaviour of crystalline rocks

L Kong, J Shang, RP Gamage, BQ Li, Y Song, W Cai… - Engineering …, 2024 - Elsevier
Mineral grains serve as the basic units of rocks. Understanding rock materials at the grain-
scale level allows us to unveil the underlying fundamental mechanisms, thereby facilitating …

Dynamic shear fracture behavior of rocks: insights from three-dimensional digital image correlation technique

C Zhang, D Li, J Ma, Q Zhu, P Luo, Y Chen… - Engineering Fracture …, 2023 - Elsevier
The influence of the loading rate on the mode I fracture property of rocks has been
extensively investigated through experiments. However, the rate-effect of the dynamic mode …

Mode I fracture properties and energy partitioning of sandstone under coupled static-dynamic loading: Implications for rockburst

H Li, M He, Y Qiao, T Cheng, Y **ao, Z Gu - Theoretical and Applied …, 2023 - Elsevier
A series of mode I fracture tests under coupled static-dynamic loading were performed on
notched semi-circular bend (NSCB) sandstone specimens using the split Hopkinson …

Underlying mechanisms of crack initiation for granitic rocks containing a single pre-existing flaw: insights from digital image correlation (DIC) analysis

L Liu, H Li, X Li, D Wu, G Zhang - Rock Mechanics and Rock Engineering, 2021 - Springer
Determination on underlying mechanisms of crack initiation is of vital importance to
understand the failure processes of geomaterials in practical engineering. In this study …

Tensile mechanical behavior and fracture characteristics of sandstone exposed to freeze-thaw treatment and dynamic loading

X Liu, Y Liu, F Dai, Z Yan - International Journal of Mechanical Sciences, 2022 - Elsevier
Rock masses in high-elevation or cold areas are vulnerable to the joint results of freeze-
thaw (FT) action and dynamic loading, it is thus significant to evaluate the tensile mechanical …

Strength and acoustic emission weakening mechanism of sandstone after prolonged water immersion: Insights from micro-fracture

T Cheng, H Li, M He, Y **ao - Engineering Fracture Mechanics, 2023 - Elsevier
In this study, a series of uniaxial compression and acoustic emission (AE) tests were
conducted on sandstone specimens immersed in water for different durations (0–720 h). The …

Correlational fractal characteristics and damage progression of granite with different grain sizes based on acoustic emission monitoring

T Cheng, L Wang, Y **ao, M He, T Wang, M Peng… - Engineering …, 2023 - Elsevier
Mineral grain size caused by the geological diagenetic process is one of the fundamental
reasons leading to the differences in rock mechanical behaviors, which brings challenges to …

Loading rate effect on the uniaxial compressive strength (UCS) behavior of cemented paste backfill (CPB)

Z **u, S Wang, Y Ji, F Wang, F Ren… - Construction and Building …, 2021 - Elsevier
Underground mined-out areas and tailings are the two major harmful consequences from
metal mining industry. Cemented Paste Backfill (CPB) method, refilling the tailings back to …

Prediction of mode I fracture toughness of shale specimens by different fracture theories considering size effect

Q **e, X Liu, S Li, K Du, F Gong, X Li - Rock Mechanics and Rock …, 2022 - Springer
In this study, mode I fracture tests on cracked straight-through Brazilian disc (CSTBD) and
notched semi-circular bend (NSCB) shale specimens with different sizes were conducted to …