A5033693685- Landslides and related hazards
- Geotechnical Engineering and Soil Mechanics
- Rock Mechanics and Modeling
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- High Temperature Alloys and Creep
- Metallurgical Processes and Thermodynamics
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Geotechnical and Geomechanical Engineering
- Geotechnical Engineering and Soil Stabilization
- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Geomechanics and Mining Engineering
- Cellular and Composite Structures
- Soil and Unsaturated Flow
- Microstructure and mechanical properties
- Polymer composites and self-healing
- Non-Destructive Testing Techniques
- Innovations in Concrete and Construction Materials
- Dam Engineering and Safety
- Geophysical Methods and Applications
- Aluminum Alloys Composites Properties
- Ultrasonics and Acoustic Wave Propagation
- Grouting, Rheology, and Soil Mechanics
City University of Hong Kong
2020-2025
Adobe Systems (United States)
2024
Hubei Engineering University
2024
China Aerodynamics Research and Development Center
2023
Guizhou Electric Power Design and Research Institute
2023
PowerChina (China)
2023
Central South University
2004-2023
State Key Laboratory of Vehicle NVH and Safety Technology
2018-2023
China State Construction Engineering (China)
2022
Chinese Academy of Sciences
2022
The whole shear deformation of rock joints significantly affects the long-term behavior and safety engineering projects. In this paper, a new damage constitutive model related to Weibull distribution statistical theory is proposed. This considers stiffness degradation, post-peak softening, residual phase in shearing process. Main works include three following aspects: First, initial determined on assumption that joint failure regarded as result evolution, according typical curve...
A machine learning-based strategy is presented to estimate the contact force chains of uniformly sized spherical granular materials under triaxial compression, using particle kinematics and inter-particle evolution data measured by X-ray micro-tomography (μCT). To this end, a graph neural network (GNN) introduced predict at end shear increment based on grain displacement during that increment. Meanwhile, discrete-element modelling (DEM) performed for glass bead specimen compression with use...
The aim of this study is to provide a landslide susceptibility map the Xunyang District mountainous terrain, at southern part Qin-Ba Mountain Region, which has been highly exposed widely distributed shallow landslides over past few decades. Weight Evidence (WoE) method was adopted in research considering both presence certain causative factor class and absence remaining classes, used for determining clearly spatial correlation between occurrence factors. Intrinsic factors, including...
This paper describes the influence of soil nail reinforcement on stability slopes through a numerical analysis that uses strength reduction method. The nailed is evaluated in terms factor safety and potential slip surface. In this paper, dual-spring structure element commercial package (FLAC3D) based an explicit finite difference formulation adopted to simulate characteristics nails. A 3D slope model built excavations effects length, orientation, installation location horizontal spacing...
A series of experiments have been carried out to investigate the effect deformation temperature on recrystallization nickel-based single crystal superalloys using isothermal (compression) and non-isothermal (directional solidification) deformation. The features induced by accumulated plastic strain in two ranges (1300–1150 °C 600–400 °C) are distinctly different from that one range °C). recrystallized (area number grains) at temperatures ranging room solidus can be attributed dislocation...
This paper investigates the effects of particle morphology (PM) and size distribution (PSD) on micro-macro mechanical behaviours granular soils through a novel X-ray micro-computed tomography (μCT)-based discrete element method (DEM) technique. technique contains grain-scale property extraction by μCT, DEM parameter calibration one-to-one mapping technique, massive derivative simulations. In total, 25 samples were generated with consideration six PSDs four PMs. The PSD PM carefully...
Fujian River sand (FJS) is a complex mixture of minerals and rock fragments shaped by the dynamic geological history province, China. The macro-micro mechanical responses FJS under triaxial shear were carefully investigated through X-ray tomography-based in-situ test. By utilizing particle tracking strategy with signature histograms orientation, both intact crushed particles can be successfully recognized tracked at different stages axial strain. It found that a. smaller are more likely to...
The tensile strength formula for the standard Brazilian test is based on plane elastic theory, which ignores three-dimensional geometrical factor, material and change in length of contact rim during test, thereby suggesting that this incomplete. Using a numerical method, we determined factors, such as ratio thickness to radius, Poisson's ratio, testing factors angle, influenced effectiveness test. Moreover, found that, basis Griffith criterion central crack initiation index Q defined paper,...
Discrete element method (DEM) has been widely utilised to model the mechanical behaviours of granular materials. However, with simplified particle morphology or rheology-based rolling resistance models, DEM failed describe some responses, such as kinematics at grain-scale and principal stress ratio against axial strain macro-scale. This paper adopts a computed tomography (CT)-based technique, including data acquisition from micro-CT (μCT), spherical harmonic-based component analysis...
The deformation mechanism and static recrystallization (SRX) behavior of an Ni-based single-crystal superalloy are investigated. Indentation tests were performed to investigate the effects crystal orientation external stress on SRX behavior. Following solution heat treatment, depth layer below indentation increases with a deviation angle (β) from [001] orientation. slip analysis indicates that increased leads increase in resolved shear plane decrease number active systems. In addition,...
In slope stability analysis, the limit equilibrium method is usually used to calculate safety factor of based on Mohr-Coulomb criterion. However, criterion restricted description rock mass. To overcome its shortcomings, this paper combined Hoek-Brown and proposed an equation for calculating with in through equivalent cohesive strength friction angle. Moreover, investigates impact parameters slope, which reveals that there linear relation between weakening factor<mml:math...