A5065322087- Landslides and related hazards
- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Stabilization
- Fluid Dynamics Simulations and Interactions
- Granular flow and fluidized beds
- Geotechnical Engineering and Analysis
- Soil and Unsaturated Flow
- Geotechnical and Geomechanical Engineering
- Dam Engineering and Safety
- Tree Root and Stability Studies
- Rock Mechanics and Modeling
- Grouting, Rheology, and Soil Mechanics
- Numerical methods in engineering
- Climate change and permafrost
- Mechanical Behavior of Composites
- Hygrothermal properties of building materials
- Lattice Boltzmann Simulation Studies
- Soil Mechanics and Vehicle Dynamics
- Tunneling and Rock Mechanics
- Soil, Finite Element Methods
- Hydrocarbon exploration and reservoir analysis
- Fluid Dynamics and Heat Transfer
- Composite Material Mechanics
- Cryospheric studies and observations
BOKU University
2016-2025
Florida State University
2025
Chongqing University of Technology
2025
Chongqing University
2010-2024
China University of Petroleum, East China
2024
Nanjing Tech University
2021-2024
State Key Laboratory of Mechanical Transmission
2024
University of Nottingham Ningbo China
2009-2024
Dalian University of Technology
2024
Fuzhou University
2023-2024
A broad diversity of biological organisms and systems interact with soil in ways that facilitate their growth survival. These interactions are made possible by strategies enable to accomplish functions can be analogous those required geotechnical engineering systems. Examples include anchorage soft weak ground, penetration into hard stiff subsurface materials movement loose sand. Since the have been ‘vetted’ process natural selection, they governed same physical laws both engineered...
Abstract Microbially induced calcium carbonate precipitation (MICP) has attracted much attention as a promising green technique for soil improvement. Despite the significance of pattern in mind, constitutive relations or numerical models considering finite‐strain mechanical effects various patterns are rarely developed. In this paper, we propose novel 3D DEM modeling scheme by using coarse particles to represent sand grains and fines cementing agents, reproduce MICP‐treated sand. Based on...
Abstract The paper presents a hypoplastic constitutive model for the three‐dimensional non‐linear stress–strain and dilatant volume change behaviour of sand. is developed without recourse to concept in elastoplasticity theory such as yield surface, plastic potential decomposition into elastic parts. Benefited from tensorial functions available representation theorem possesses simple mathematical formulation contains only four material parameters, which can be easily identified with triaxial...
In this paper, we present a unified numerical framework for granular modelling. A constitutive model capable of describing both quasi-static and dynamic behaviours material is developed. Two types particle interactions controlling the mechanical responses, frictional contact collision, are considered by hypoplastic Bagnold-type rheology relation, respectively. The makes no use concepts like yield stress or flow initiation criterion. smooth transition between solid-like fluid-like behaviour...
A thermodynamically consistent phase field model with new crack driving forces is proposed to simulate the mixed-mode fracture phenomena in rock-like materials. The governing equations are derived using volumetric and deviatoric strain split. Based on Benzeggagh–Kenane failure criterion, our captures salient features of different modes, e.g., pure tensile dominated fracture, shear mixed tensile-shear compressive-shear phenomena. fully monolithic algorithm enables obtain stable numerical...
The study on fluid-solid interaction in heterogeneous suspensions is essential for theoretical research and engineering practice. In this paper, a three-dimensional fully resolved SPH-DEM method presented to model with non-Newtonian fluids solid particles of arbitrary shape. fluid phase modelled using SPH regularized Bingham model, whereas aggregates irregular shapes DEM based surface mesh representation. A simple unified hybrid contact proposed the SPH-boundary, SPH-DEM, DEM-DEM,...
We present a new phase-field formulation for the formation and propagation of compaction band in high-porosity rocks. Novel features proposed include (a) effects inertia on rate development bands, (b) degradation mechanisms tension, compression, shear appropriate dynamic strain localization problems where disturbances propagate time wave-like fashion to induce micro-cracking, grain crushing, frictional rearrangement rock. also robust numerical technique handle spatiotemporal evolution band....
This paper deals with the numerical simulation of initiation and propagation mixed mode fracture in rocks. A bond-level energy-based peridynamic model is developed by introducing a dilatation function to capture both volumetric deviatoric deformations. We proceed define nonlocal stresses obtain isotropic forces commensurate then come up new failure link computational peridynamics some phenomenological criteria, which highly relevant for brittle quasi-brittle Finally, several examples...
We formulate a modified phase-field model for cohesive interface failure in quasi-brittle solids. Our has two novel features: (i) traction–separation-damage law damage process; (ii) an energetic degradation function controlled by critical gap ratio. This modification offers attractive approach to simulate the process. also provide robust numerical solution strategy treat spatio-temporal evolution of failure. is validated benchmark problems including constant strain patch test and mode-I...
Abstract This paper introduces a new hypoplastic model characterized by simple and elegant formulation. It requires only 7 material parameters to depict salient mechanical behaviors of granular materials. The numerical implementation employs an explicit integration method, enhanced best-fit stress correction algorithm in smoothed particle hydrodynamics code. performance this capturing soil behavior across range scenarios is demonstrated conducting various tests, including triaxial shear at...