Formulation, calibration, and applications of disk-based discontinuous deformation analysis for rock failure simulation

K Zhang, F Liu, K Xia - International Journal of Rock Mechanics and Mining …, 2021 - Elsevier
Abstract Liu et al.(2018) preliminarily proposed a bonded-particle model (BPM) for disk-
based discontinuous deformation analysis (DDA). This BPM can resist relative rotation of …

Analysis of landslide-generated impulsive waves using a coupled DDA-SPH method

W Wang, G Chen, H Zhang, S Zhou, S Liu, Y Wu… - … Analysis with Boundary …, 2016 - Elsevier
Large impulsive waves generated by slope failures and a subsequent landslide in a
reservoir area may lead to serious damage to the dam, shoreline properties and lives …

A new approach for modeling landslide movement over 3D topography using 3D discontinuous deformation analysis

W Wang, H Zhang, L Zheng, Y Zhang, Y Wu… - Computers and …, 2017 - Elsevier
Landslide movement analysis over three-dimensional (3D) topography is crucial for hazard
evaluation and prevention. This paper presents a new approach to simulate landslide …

An efficient disk-based discontinuous deformation analysis model for simulating large-scale problems

GH Huang, YZ Xu, XW Yi, M Xia - International Journal of …, 2020 - ascelibrary.org
Simulating large-scale problems are still challenging for discontinuous deformation analysis
(DDA). To this end, this paper develops an efficient disk-based DDA (DDDA) model …

A new DDA model for kinematic analyses of rockslides on complex 3-D terrain

H Zhang, S Liu, W Wang, L Zheng, Y Zhang… - Bulletin of Engineering …, 2018 - Springer
Landslides are common phenomena in mountainous regions worldwide. Over the past two
decades, catastrophic rockslides in mountainous regions have caused serious damage and …

A new algorithm to identify contact types between arbitrarily shaped polyhedral blocks for three-dimensional discontinuous deformation analysis

H Zhang, S Liu, Z Han, L Zheng, Y Zhang, Y Wu… - Computers and …, 2016 - Elsevier
In the contact theory for three-dimensional discontinuous deformation analysis (3-D DDA),
the first step is to identify the types of contacts between the blocks. This paper presents a …

Three-dimensional DDA and DLSM coupled approach for rock cutting and rock penetration

GF Zhao, JJ Lian, AR Russell, J Zhao - International Journal of …, 2017 - ascelibrary.org
Rock cutting and rock penetration are typical problems in civil, mining, petroleum, and
geothermal engineering disciplines. They involve dynamic fracturing and fragmentation of …

Applying disk-based discontinuous deformation analysis (DDA) to simulate Donghekou landslide triggered by the Wenchuan earthquake

SAR Beyabanaki, AC Bagtzoglou… - Geomechanics and …, 2016 - Taylor & Francis
In this paper, for the first time, disk-based discontinuous deformation analysis (DDA) is
applied to simulate a real landslide triggered by an earthquake. For this purpose, the …

A new C++ programming strategy for three-dimensional sphere discontinuous deformation analysis

GH Huang, YZ Xu, XF Chen, M Xia… - International Journal of …, 2020 - ascelibrary.org
A new C++ programming strategy with high modularization and good portability, and a novel
data storage format for simultaneous equations with little computer memory consumption, no …

Extension of three-dimensional discontinuous deformation analysis to frictional-cohesive materials

H Zhang, S Liu, G Chen, L Zheng, Y Zhang… - International Journal of …, 2016 - Elsevier
This paper extends three-dimensional discontinuous deformation analysis (3-D DDA) to
model the frictional-cohesive failure behavior of geotechnical materials and structures …