Brazilian tensile strength of anisotropic rocks: review and new insights

T Ma, N Peng, Z Zhu, Q Zhang, C Yang, J Zhao - Energies, 2018 - mdpi.com
Strength anisotropy is one of the most distinct features of anisotropic rocks, and it also
normally reveals strong anisotropy in Brazilian test Strength (“BtS”). Theoretical research on …

A tectono-stratigraphic review of continental breakup on intraplate continental margins and its impact on resultant hydrocarbon systems

T Alves, M Fetter, C Busby, R Gontijo, TA Cunha… - Marine and Petroleum …, 2020 - Elsevier
Abstract Intraplate Continental Margins comprise fully rifted areas of continents and cratons
recording the tectonic events associated with plate breakup and subsequent continental …

Fractal characteristics and acoustic emission of anisotropic shale in Brazilian tests

SW Zhang, KJ Shou, XF **an, JP Zhou… - … and Underground Space …, 2018 - Elsevier
The strata of shale contain structural weak planes such as laminations and joints, which do
not have the same mechanical properties as intact rock masses. Tensile strength is a critical …

Effects of strain rate and bedding on shale fracture mechanisms

J **, L Wang, Z Yan, G Li, J Wang - International Journal of Mechanical …, 2024 - Elsevier
Anisotropic shale is commonly distributed in nature and undergoes both dynamic
compressive and tensile load in geological engineering. In this article, the coupling effects of …

Experimental investigation on the anisotropy of mode-I fracture and tensile failure of layered shale

T Ma, H Wang, Y Liu, C Fu, PG Ranjith - Engineering Fracture Mechanics, 2023 - Elsevier
Mode-I fracture toughness (K IC) and tensile strength (σ t) are significant parameters in
hydraulic fracturing. Owing to the unique mineral composition and sedimentary environment …

Impacts of bedding angle and cementation type of bedding planes on mechanical behavior of thin-layer structured bedded rocks under uniaxial compression

M Liu, X Luo, R Bi, J Zhou, K Du - Geomechanics for Energy and the …, 2023 - Elsevier
To investigate the mechanical behavior and crack evolution properties of the anisotropic
bedded rocks, a series of uniaxial compression tests were conducted using bedded …

Fracture-initiation pressure model of inclined wells in transversely isotropic formation with anisotropic tensile strength

T Ma, H Wang, Y Liu, Y Shi, PG Ranjith - International Journal of Rock …, 2022 - Elsevier
Fracture-initiation pressure (FIP) is closely related to lost circulation and hydraulic fracturing.
However, conventional prediction models often treat formation rock as an isotropic medium …

Anisotropy and directionality of tensile behaviours of a jointed rock mass subjected to numerical Brazilian tests

P Wang, M Cai, F Ren - Tunnelling and Underground Space Technology, 2018 - Elsevier
Strong anisotropy of tensile behaviros and spatial anisotropic deformation have been found
in transversely isotropic rock discs. There is seldom attention paid for the insightful analysis …

Investigating tensile failure mechanisms of layered rocks through physical testing and PFC3D analysis

J Fu, H Haeri, V Sarfarazi, A Rahmani… - Engineering Fracture …, 2024 - Elsevier
Rocks generally exhibit less resistance to tension compared to shear or compression forces,
and tension cracks often precede shear or compression failures. While the mechanical …

Numerical investigation of the direct tensile behaviour of laminated and transversely isotropic rocks containing incipient bedding planes with different strengths

J Shang, K Duan, Y Gui, K Handley, Z Zhao - Computers and Geotechnics, 2018 - Elsevier
The anisotropic direct tensile behaviour of laminated and transversely isotropic Midgley Grit
sandstone (MGS) was investigated in this paper using a particle-based discrete element …