Results 21 to 30 of about 110 (106)

Three-Dimensional Combined Finite-Discrete Element Modeling of Shear Fracture Process in Direct Shearing of Rough Concrete–Rock Joints

Applied Sciences, 2020
A three-dimensional combined finite-discrete element element method (FDEM), parallelized by a general-purpose graphic-processing-unit (GPGPU), was applied to identify the fracture process of rough concrete–rock joints under direct shearing.
Gyeongjo Min, Daisuke Fukuda, Sewook Oh, Gyeonggyu Kim, Younghun Ko, Hongyuan Liu, Moonkyung Chung, Sangho Cho   +7 more
doaj   +1 more source

Numerical simulation of hydraulic fracturing and associated microseismicity using finite-discrete element method

Journal of Rock Mechanics and Geotechnical Engineering, 2014
Hydraulic fracturing (HF) technique has been extensively used for the exploitation of unconventional oil and gas reservoirs. HF enhances the connectivity of less permeable oil and gas-bearing rock formations by fluid injection, which creates an ...
Qi Zhao, Andrea Lisjak, Omid Mahabadi, Qinya Liu, Giovanni Grasselli   +4 more
doaj   +1 more source

Analysis of Extent of Deformation Range and Failure Characteristics of Rocks Surrounding a Tunnel Crossing Fault Zone Based on FDEM

Advances in Civil Engineering, 2022
The combined finite-discrete element method (FDEM) and laboratory test were selected to study the extent of deformation range and time-dependent deformation of surrounding rock during tunnel excavation without support in a fault-crossing tunnel project ...
Guo Xiaoxiong, Wang Ning, Xu Xueliang, Ye Zihui   +3 more
doaj   +1 more source

State-of-the-Art Review and Prospect of Modelling the Dynamic Fracture of Rocks Under Impact Loads and Application in Blasting

Geosciences
The dynamic fracture of rocks under impact loads has many engineering applications such as rock blasting. This study reviews the recent achievements of investigating rock dynamic fracturing and its application in rock blasting using computational ...
Muhammad Kamran, Hongyuan Liu, Daisuke Fukuda, Peng Jia, Gyeongjo Min, Andrew Chan   +5 more
doaj   +1 more source

Fracture Analysis of Compacted Clay Soil Beams with Offset Notches Based on Three-Point Bending Test: Experimental Characterization and Numerical Simulation

Advances in Civil Engineering, 2022
The design and performance of tillage components such as subsoiler are generally characterized by the fracture features of soil mass in agricultural engineering, thus making the improvements of those tillage tools challenging due to the fact that the ...
Liangfei Fang, Chengmao Cao, Qing Li, Kuan Qin, Xingdong Sun, Jun Ge   +5 more
doaj   +1 more source

Combined Voronoi-FDEM approach for modelling post-fracture response of laminated tempered glass

Challenging Glass Conference Proceedings, 2020
In this work, a combined Voronoi and finite-discrete element method (FDEM) approach for reconstructing the post-fracture model of laminated glass (LG) was proposed.
Xing-er Wang, Jian Yang, Zhufeng Pan, Yuhan Zhu   +3 more
doaj   +1 more source

FDEM simulation for granular materials based on exact scaling and coarse granulation

Yantu gongcheng xuebao
The particle materials are characterized by discontinuity and dispersion, so they face great computational pressure in numerical simulation. The exact scaling criterion and coarse-grained method are introduced into the combined finite-discrete element ...
WANG Jingzhou 1, MA Gang 1, 2, 3, ZHAO Tingting 4, ZHANG Wenyu 1, HU Jinfang 2, ZHOU Wei 1, 2, 3
doaj   +1 more source

A review of computational approaches for simulating fracturing mechanisms in layered rock formations

International Journal of Coal Science & Technology
With the increasing availability and sophistication of computer hardware and software, computational modelling has become a cornerstone in the understanding of geomaterials mechanical behaviours over recent decades.
Hongtao Li, Jimeng Feng, Dong Su, Xiangsheng Chen, Xingsen Guo   +4 more
doaj   +1 more source

Morphology-Controlled Single Rock Particle Breakage: A Finite-Discrete Element Method Study with Fractal Dimension Analysis

Fractal and Fractional
This study investigates the influence of particle morphology on two-dimensional (2D) single rock particle breakage using the combined finite-discrete element method (FDEM) coupled with fractal dimension analysis.
Ruidong Li, Shaoheng He, Haoran Jiang, Chengkai Xu, Ningyu Yang   +4 more
doaj   +1 more source

Excavation-induced fracturing mechanisms in deep hard rock: A hierarchical block model

Underground Space
The fracture characteristics of the excavation damage zones (EDZs) of deeply buried tunnels are closely related to energy evolution, and they are highly valuable for support design.
Shili Qiu, Shirui Zhang, Quan Jiang, Yuheng Fang, Ping Li, Shaojun Li, Yaxun Xiao, Dingping Xu   +7 more
doaj   +1 more source