On three-dimensional modelling of crack growth using partition of unity methods

T Rabczuk, S Bordas, G Zi - Computers & structures, 2010‏ - Elsevier
This paper reviews different crack tracking techniques in three-dimensions applicable in the
context of partition of unity methods, especially meshfree methods. Issues such as …

Replication of internal defects and investigation of mechanical and fracture behaviour of rock using 3D printing and 3D numerical methods in combination with X-ray …

JB Zhu, T Zhou, ZY Liao, L Sun, XB Li… - International Journal of …, 2018‏ - Elsevier
It is difficult to accurately visualize internal structure and characterize progressive fracture
process during rock failure due to the heterogeneous and opaque features of rock. This …

Development and verification of three-dimensional equivalent discrete fracture network modelling based on the finite element method

N Wu, Z Liang, Z Zhang, S Li, Y Lang - Engineering Geology, 2022‏ - Elsevier
The discrete fracture network (DFN) method is essential for estimating the mechanical
properties of naturally fractured rock masses. A three-dimensional (3D) equivalent DFN …

[HTML][HTML] Microscale crack propagation in shale samples using focused ion beam scanning electron microscopy and three-dimensional numerical modeling

X Liu, SW Meng, ZZ Liang, JP Tao, JZ Tang - Petroleum Science, 2023‏ - Elsevier
Reliable prediction of the shale fracturing process is a challenging problem in exploiting
deep shale oil and gas resources. Complex fracture networks need to be artificially created …

Micro-mechanical modeling of the macro-mechanical response and fracture behavior of rock using the numerical manifold method

Z Wu, L Fan, Q Liu, G Ma - Engineering Geology, 2017‏ - Elsevier
A micro-mechanical based numerical manifold method (NMM) is proposed in this study to
investigate the micro-mechanisms underlying rock macroscopic response and fracture …

Numerical simulation of 3D hydraulic fracturing based on an improved flow-stress-damage model and a parallel FEM technique

LC Li, CA Tang, G Li, SY Wang, ZZ Liang… - Rock Mechanics and rock …, 2012‏ - Springer
The failure mechanism of hydraulic fractures in heterogeneous geological materials is an
important topic in mining and petroleum engineering. A three-dimensional (3D) finite …

A three-dimensional numerical investigation of the fracture of rock specimens containing a pre-existing surface flaw

ZZ Liang, H **ng, SY Wang, DJ Williams… - Computers and …, 2012‏ - Elsevier
Three-dimensional surface crack initiation and propagation in two kinds of heterogeneous
rocks were numerically investigated via parallel finite element analysis using a …

Mesoscopic damage and fracturing of heterogeneous brittle rocks based on three-dimensional polycrystalline discrete element method

T Xu, TF Fu, MJ Heap, PG Meredith, TM Mitchell… - Rock Mechanics and …, 2020‏ - Springer
Rock heterogeneities often control microcracking on the grain scale and therefore the
mechanical behavior of the rock on the macroscale. We therefore studied the fracture …

TOUGH-RFPA: Coupled thermal-hydraulic-mechanical Rock Failure Process Analysis with application to deep geothermal wells

T Li, J Rutqvist, M Hu - International Journal of Rock Mechanics and …, 2021‏ - Elsevier
This paper presents a coupled thermal-hydraulic-mechanical (THM) model for simulating
failure processes in geological media. The coupling between stress/strain and heat transfer …

Investigation of the characteristics of rock fracture process zone using coupled FEM/DEM method

Z Wu, L Ma, L Fan - Engineering Fracture Mechanics, 2018‏ - Elsevier
During the failure process of quasi-brittle materials such as rock, a fracture process zone
(FPZ) can easily develop ahead of a crack tip, significantly affecting the strength and stability …