A5040251251- Structural Behavior of Reinforced Concrete
- Water Systems and Optimization
- Innovative concrete reinforcement materials
- Structural Response to Dynamic Loads
- Geotechnical Engineering and Underground Structures
- Hydraulic and Pneumatic Systems
- Hydraulic flow and structures
- Plant Disease Resistance and Genetics
- Genetic Mapping and Diversity in Plants and Animals
- Postharvest Quality and Shelf Life Management
- Concrete Corrosion and Durability
- Cavitation Phenomena in Pumps
- Geotechnical Engineering and Analysis
- Water Quality Monitoring Technologies
- Fluid Dynamics and Vibration Analysis
- Civil and Geotechnical Engineering Research
- Fluid Dynamics and Turbulent Flows
- Grouting, Rheology, and Soil Mechanics
- Vibration and Dynamic Analysis
- Structural Engineering and Vibration Analysis
- Concrete and Cement Materials Research
- Rocket and propulsion systems research
- Mechanics and Biomechanics Studies
- Innovations in Concrete and Construction Materials
- Pelvic and Acetabular Injuries
Fujian Provincial Hospital
2025
Fujian Medical University
2025
Fuzhou University
2025
Kunming University of Science and Technology
2014-2024
China Agricultural University
2007-2023
China Institute of Water Resources and Hydropower Research
2022-2023
Shandong First Medical University
2021
Shandong Tumor Hospital
2021
Chongqing University
2021
University of Electronic Science and Technology of China
2021
To develop an advanced predictive finite element (FE) model for accurately 3D simulating reinforced concrete (RC) structures under cyclic loading, a novel damage model, known as the Zhang-Hou has been developed. This is integrated into elastoplastic constitutive and subsequently implemented in FE software ABAQUS. Unlike conventional Barcelona this employs concept of plastic degradation to describe damage. Notably, it capable characterizing throughout entire deformation process rather than...
This paper presents a study on the bond behaviour of FRP-concrete bonded joints under static and dynamic loadings, by developing meso-scale finite element model using K&C concrete damage in LS-DYNA. A significant number single shear experiments pull-off loading were modelled with an extensive parametric covering key factors model, including crack band width, compressive fracture energy dilatation factor. It is demonstrated that developed can satisfactorily simulate debonding behaviour,...
In hydraulic systems, transient flow often occurs and may results in cavitation pipelines. this paper, the Computational Fluid Dynamics (CFD) method based on Fluent software was used to investigate pipeline; density-pressure model incorporated into continuity equation by using further development of UDF (user defined function), which reflects variable wave speed flow, related algorithms were established weakly compressible fluid Reynolds Average Navier-Stokes (RANS) techniques. Firstly,...
The presence of symmetric and asymmetric voids directly affects the mechanical behaviors tunnel linings further induces diseases among influence factors. In this paper, 1:5-scale model tests were carried out to study reinforced concrete (RC) considering located at crown spandrel. Based on experimental results plastic damage (CDP) model, effects void (i.e., location size), subgrade stiffness, lining size bearing capacity RC investigated using numerical simulation. test parametric analysis...
A number of 1/5 scale normal concrete (NC), reinforced (RC), Engineered cementitious composites (ECC) and ECC (R/ECC) tunnel lining specimens were tested under vertical loading applied at the mid-top crown mechanical behaviours analysed. Four FE models established compared in detail with test data. Subsequently, numerical analysis NC strengthening methods for different damage levels was performed. The linings exhibiting strengthened by either RC arch, R/ECC steel plate carbon fibre polymer...
Abstract Transient flow characteristics and dissipation mechanism in pressurized pipeline were investigated based on 1D friction models 3D turbulence models, where the pressure–density model was combined into continuity equation allowing for elasticity of fluid pipes. The applicability realizable k–ε SST (shear stress transport) k–ω verified with comparison to traditional water hammer experimental data fast closing valve reservoir–pipe–valve system. closure rule instantaneously carried out...
Computed tomography (CT) is currently the imaging modality of choice for guiding pulmonary percutaneous procedures. The use a tin filter allows low-energy photons to be absorbed which contribute little image quality but increases radiation dose that patient receives. Iterative metal artefact reduction (iMAR) was developed diminish artefacts. This study investigated impact using filtration combined with an iMAR algorithm on and in CT-guided lung biopsy.Ninety-nine consecutive patients...
Engineered cementitious composites (ECC) have higher ultimate tensile strains than normal concrete. The mechanical properties of ECC strongly depend on raw materials and the mix proportions. uniform design test method alternating conditional expectation, which is a nonparametric regression analysis method, were used to proportion. According analysis, optimized W/B, S/B, F/B ranges could be obtained as 0.35–0.42, 0.25–0.3, 0.02, respectively. tested proportions for validation randomly adopted...
Leakage occurs in rural water supply pipelines very often and its locating is quite demanding even for specialists, which could result a poor operation efficiency of projects thus low guarantee rate. In view this problem, the detection leakage, as well prediction, great significance operation, maintenance, administration projects. The traditional monitoring-warning systems urban distribution networks cannot be applied to networks, due various limitations. Meanwhile, with models, most new...
The steel plate reinforcement method is widely used for strengthening damaged linings. Nevertheless, low durability one of the disadvantages method, which uses epoxy resin as interface binder. To enhance load-bearing performance and effect steel-plate-reinforced structures, this study introduced ultra-high concrete (UHPC) reinforcing bonding layer proposed a novel plate–UHPC cracked A mechanical model test was conducted on 1/5 scale lining using loading device to evaluate stress deformation...
Abstract The two-dimensional (2D) axial-symmetric model is applied to investigate the transient cavitating flows in reservoir-pipeline-valve (RPV) system. Firstly, MacCormack scheme used solve governing equations, and compared numerical results of one-dimensional (1D) model, 2D head peaks time-dependent evolutions predicted by five-region turbulence frozen form are better agreement with experimental results, comparisons show that maximum relative errors generally smaller than those 1D model....
Strain-hardening cementitious composite (SHCC) is ideal materials exhibiting ultra-high toughness, low permeability, and superior durability properties. SHCC widely used for strengthening repairing concrete structures. However, the permeability of bonding interface between normal (NC) remains unclear due to lack experimental data. This study aims investigate impermeability SHCC-NC interface. The influences interfacial roughness, agent, curing time, substrate material on splitting tensile...
Transient flows with water-flow-induced multi-point cavitation inside an undulating pipeline are investigated experimentally under conditions of fast valve closure for three typical test cases by using high-precision pressure transducers, high-speed photography and particle image velocimetry (PIV) techniques. For low initial velocity condition, the transient at monitoring point (PT1) downstream quickly decreases to fluctuates near it. The leading-edge dispersed bubble-like group first...
A 1/5-scale model test was used to analyze and compare the mechanical responses of engineered cementitious composite (ECC) lining traditional concrete under vertically concentrated loading. Test results indicate that major failure mode cross section is controlled by tensile stress. ECC linings express better cracking control capability deformation performance than tunnel linings. On this basis, effects loading direction, material properties, soil stiffness, size on behavior R/ECC were...
This paper examines free-surface vortices and the vorticity distribution with time-dependent evolution within a closed pump intake under five pressure conditions. The location strength of these vortices, occurrence probability perspective statistics, as well vortex are all systematically analyzed. Three cases were observed analyzed: (a) Subcritical (Q= 19.78 m3/h), whether occur or not is related closely to magnitude. (b) Critical 22.61 was significantly impacted by applied. number increases...