A5003117942- Hydraulic Fracturing and Reservoir Analysis
- Rock Mechanics and Modeling
- Fluid Dynamics Simulations and Interactions
- Drilling and Well Engineering
- High-Velocity Impact and Material Behavior
- Geotechnical and Geomechanical Engineering
- Numerical methods in engineering
- Seismic Imaging and Inversion Techniques
- Landslides and related hazards
- Geophysical Methods and Applications
- Structural Analysis of Composite Materials
- earthquake and tectonic studies
- Planetary Science and Exploration
- Groundwater flow and contamination studies
- Astro and Planetary Science
- Granular flow and fluidized beds
- Lattice Boltzmann Simulation Studies
- Seismic Waves and Analysis
- Non-Destructive Testing Techniques
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Adhesion, Friction, and Surface Interactions
- Contact Mechanics and Variational Inequalities
- Geotechnical Engineering and Underground Structures
- Tunneling and Rock Mechanics
Taiyuan Heavy Industry (China)
2025
Fujian Medical University
2025
Los Alamos National Laboratory
2015-2024
Xi'an Shiyou University
2024
Government of the United States of America
2023
Sorbonne Université
2020
Hôpital Armand-Trousseau
2020
Assistance Publique – Hôpitaux de Paris
2020
Environmental Earth Sciences
2019
Xiangtan University
2016-2017
Abstract Nearly thirty years since its inception, the combined finite-discrete element method (FDEM) has made remarkable strides in becoming a mainstream analysis tool within field of Computational Mechanics. FDEM was developed to effectively “bridge gap” between two disparate Mechanics approaches known as finite and discrete methods. At Los Alamos National Laboratory (LANL) researchers Hybrid Optimization Software Suite (HOSS) hybrid multi-physics platform, based on FDEM, for simulation...
Abstract Fracture damage patterns around faults induced by dynamic earthquake rupture are an invaluable record to clarify the process on complex fault networks. The 2016 M w 7.8 Kaikōura in New Zealand has been reported as one of most earthquakes ever documented that ruptured at least 15 crustal faults. High‐resolution optical satellite image displacement maps provide distinctive profiles across and help visualize off‐fault pattern. They combined with field observation coupled a numerical...
Abstract The challenge of characterizing subsurface fluid flow has motivated extensive laboratory studies, yet through rock specimens in which fractures are created and maintained at high‐stress conditions remains underinvestigated this time. studies type that do exist not include situ fracture geometry measurements acquired stressed conditions, would be beneficial for interpreting the behavior. Therefore, study investigates apparent permeability induced by direct‐shear stimulation Utica...
Earthquake ruptures dynamically activate coseismic off-fault damage around fault cores. Systematic field observation efforts have shown the distribution of main faults, while numerical modeling using elastic-plastic material models has demonstrated evolution during earthquake ruptures. Laboratory scale micro-earthquake experiments pointed out enhanced high-frequency radiation due to damage. However, detailed fracturing mechanisms, subsequent and its contribution overall energy budget remain...
SUMMARY A model for fracture and fragmentation of multilayered thin shells has been developed implemented into the combined finite–discrete element code. The proposed incorporates an extension original single smeared approach to shells; it then combines these with interaction algorithm that is based on distributed potential contact force approach. kinematics preserves both energy momentum balance, whereas capable modelling complex patterns such as laminated glass under impact. Copyright ©...
Summary The combined finite‐discrete element method (FDEM) was originally developed for fracture and fragmentation of brittle materials, more specifically cementitious rock‐like materials. In this work, a combination discrete crack plastic deformation has been applied to FDEM simulation fracture. is described using FDEM‐specific mechanistic approach with being formulated in material embedded coordinate systems leading multiplicative decomposition flow, that is, resolved stretch space; the...
Summary In this work, we propose a novel hydraulic solver in order to simulate key mechanisms that control fluid‐driven cracks the framework of combined finite‐discrete element method (FDEM). The main innovative aspect present work is independence fluid's critical time step size with fracture opening. This advantage extremely important because it means very fine meshes can be used around areas interest, such as boreholes, without penalizing computational cost fractures propagate (ie, open)...
Summary In conventional wellbore-integrity analysis, the cement sheath’s initial state of stress and transient thermoporoelastic effects are often neglected. However, is prerequisite information for accurately predicting safe operating conditions that prevent a cemented well from being damaged. addition, can have profound effect on when damage will occur. this paper, we propose model includes these to predict pressures temperatures cement-sheath failure. For stress, proposed an empirical...
Detecting nucleic acid biomarkers is essential for early cancer diagnosis and monitoring. Traditional methods (e.g., exponential isothermal amplification (EXPAR)) adopt DNA polymerases endonucleases analysis, but they are limited by the dependence on specific sequences nonspecific amplification. Here, we establish a programmable universal diagnostic platform named Functional Junction Molecule Unveil (FJMU) microRNAs detection. FJMU incorporates Argonaute (Ago) nuclease polymerase to...
The large toothed double-roll crusher, as key crushing equipment for open pit mines, is very necessary to analyse its performance at different feed particle sizes, compressive strengths of coal, and rotation speeds rollers. Firstly, a crusher taken the research object in this paper; coupling simulation model based on DEM-MBD Ab-T10 breakage constructed. validity verified through actual measurement data. On basis, under variable factors analysed by integrating comprehensive tests. results...
Abstract Sheared granular layers undergoing stick‐slip behavior are broadly employed to study the physics and dynamics of earthquakes. Here a two‐dimensional implementation combined finite‐discrete element method (FDEM), which merges finite (FEM) discrete (DEM), is used explicitly simulate sheared fault system including both gouge plate, investigate influence different normal loads on seismic moment, macroscopic friction coefficient, kinetic energy, layer thickness, recurrence time between...
A driving technical concern for the automobile industry is their assurance that developed windshield products meet Federal safety standards. Besides conducting innumerable glass breakage experiments, product developers also have option of utilizing numerical approaches can provide further insight into impact breakage, fracture, and fragmentation. The combined finite-discrete element method (FDEM) one such tool was used in this study to investigate 3D fracture processes. To enable analysis, a...