We present a discussion of the state-of-the-art on the use of discrete fracture networks
(DFNs) for modelling geometrical characteristics, geomechanical evolution and …

Peridynamic (PD) theory is an integral-type nonlocal continuum mechanics theory that
reformulates the equation of motion in local continuum mechanics as an integrodifferential …

At microscopic level, natural flaws act as stress concentrators in rock, favoring brittle fracture.
Acoustic emission (AE) monitoring was applied for the qualitative and quantitative …

General particle dynamics (GPD), which is a novel meshless numerical method, is proposed
to simulate the initiation, propagation and coalescence of 3D pre-existing penetrating and …

The influence of in-situ stresses on flow processes in fractured rock is investigated using a
novel modelling approach. The combined finite-discrete element method (FEMDEM) is used …

In the present work, the phase field method implemented by the user-defined element (UEL)
subroutine of commercial finite element software ABAQUS is adopted to investigate the …

We review the existing methods for evaluating the hydraulic conductivity of a rock mass.
Rock mass permeability may be assessed using empirical, analytical and numerical …

The presence of sealed or semi-sealed, multiscale natural fracture systems appears to be
crucial for the successful stimulation of deep reservoirs. To explore the reaction of such …

Pre-existing microscopic flaws in brittle rocks act as local stress concentrators and cause the
nucleation and propagation of microcracks, resulting in a decrease of stiffness. The …

A new 3D numerical mesoscale model is proposed to describe the time-independent
deformation and fracturing of brittle rocks that accounts for material heterogeneity and local …