Numerical models in discontinuous media: review of advances for rock mechanics applications

A Bobet, A Fakhimi, S Johnson, J Morris… - … of geotechnical and …, 2009 - ascelibrary.org
The paper presents a description of the methods used to model rock as discontinuous
media. The objective of the work is to bring to the geomechanics community recent …

Numerical simulation of fracking in shale rocks: current state and future approaches

G Hattori, J Trevelyan, CE Augarde… - … Methods in Engineering, 2017 - Springer
Extracting gas from shale rocks is one of the current engineering challenges but offers the
prospect of cheap gas. Part of the development of an effective engineering solution for shale …

FDEM numerical modeling of failure mechanisms of anisotropic rock masses around deep tunnels

P Deng, Q Liu, X Huang, Y Pan, J Wu - Computers and Geotechnics, 2022 - Elsevier
The failure mechanism and failure mode of anisotropic rock masses are very different from
those of isotropic rock masses. For unsupported tunnels, the failure modes of anisotropic …

Modelling rock fracturing and blast-induced rock mass failure via advanced discretisation within the discontinuous deformation analysis framework

Y Ning, J Yang, X An, G Ma - Computers and Geotechnics, 2011 - Elsevier
Rock mass failure is a particularly complex process that involves the opening and sliding of
existing discontinuities and the fracturing of the intact rock. This paper adopts an advanced …

Development of a coupled DDA–SPH method and its application to dynamic simulation of landslides involving solid–fluid interaction

X Peng, P Yu, G Chen, M Xia, Y Zhang - Rock Mechanics and Rock …, 2020 - Springer
Landslides involving solid–fluid interaction such as submarine landslides and landslide
dams occur frequently around the world, which may bring severe damage to human lives …

Dual form of discontinuous deformation analysis

H Zheng, P Zhang, X Du - Computer methods in applied mechanics and …, 2016 - Elsevier
Discontinuous deformation analysis (DDA) is a numerical method for analyzing dynamic
behaviors of an assemblage of distinct blocks, with the block displacements as the basic …

Extension of discontinuous deformation analysis and application in cohesive-frictional slope analysis

Y Zhang, Q Xu, G Chen, JX Zhao, L Zheng - International Journal of Rock …, 2014 - Elsevier
This paper extends the discontinuous deformation analysis (DDA) by using an additional
evaluation of edge-to-edge contact, with the aim that it can be used to accurately model the …

A nodal-based 3D discontinuous deformation analysis method with contact potential for discrete rock block system

Y Yang, W Wu, D Xu, Y Xia, D Yang - Rock Mechanics and Rock …, 2023 - Springer
To analyze the movement of discrete rock block systems, a nodal-based three-dimensional
discontinuous deformation analysis method with contact potential (3D-NDDACP) is …

Explicit discontinuous deformation analysis method with lumped mass matrix for highly discrete block system

Y Yang, D Xu, H Zheng - International Journal of Geomechanics, 2018 - ascelibrary.org
In the traditional discontinuous deformation analysis (DDA) method, the implicit time
integration scheme is used to integrate equations of motion for modeling the mechanical …

Modeling wave propagation in rock masses using the contact potential-based three-dimensional discontinuous deformation analysis method

Y Yang, D Xu, H Zheng, Z Wu, D Huang - Rock Mechanics and Rock …, 2021 - Springer
The most recently proposed three-dimensional (3D) contact potential-based discontinuous
deformation analysis (3D-CPDDA) method is further applied for wave propagation problems …