A5036514744- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- Landslides and related hazards
- Tunneling and Rock Mechanics
- Geotechnical Engineering and Soil Stabilization
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Grouting, Rheology, and Soil Mechanics
- Electromagnetic Launch and Propulsion Technology
- Advanced ceramic materials synthesis
- Advanced machining processes and optimization
- Blasting Impact and Analysis
- Dam Engineering and Safety
- Geophysical Methods and Applications
- Geophysics and Sensor Technology
- Concrete Corrosion and Durability
- Intermetallics and Advanced Alloy Properties
- Aluminum Alloys Composites Properties
- Corrosion Behavior and Inhibition
- Civil and Geotechnical Engineering Research
- Advanced Surface Polishing Techniques
- Mechanical Behavior of Composites
- Advanced Measurement and Detection Methods
- Tribology and Wear Analysis
- Natural Fiber Reinforced Composites
Nanchang Hangkong University
2024
Hunan Institute of Engineering
2017-2023
Central South University
2013-2017
Xiaomi (China)
2009
The crack propagation evolution of carbonaceous mudstone under the action dry-wet cycles is an important cause unstable failure this type slope. This paper attempts to reveal mechanism mesocrack and macrocrack in from chemical, physical, mechanical perspectives. Firstly, soaking solution during was extracted for ion concentration test analyze chemical reactions mudstone. Then, CT scans were performed on samples study changing pattern mesostructure cycles. In end, properties characteristics...
Clarifying the time-dependent strength deterioration characteristics of carbonaceous mudstone under dry and wet cycles is great significance to design expressway cut slopes. In this work, we conducted triaxial compression creep tests on specimens that had undergone different numbers investigate their properties. A function was established between steady-state viscoplastic rate axial compression. The threshold stress assumed as long-term strength, law studied. results showed transient strain,...
In this study, tensile-tensile fatigue testing of unidirectional (UD) carbon-fiber-reinforced polymer (CFRP) prepreg laminates was performed. Two types specimens (open-hole and unopened-hole ones) were examined at different stress levels to elucidate the impact damage on their static strength numbers cycles. The effect internal heat generation during life CFRP analyzed by observing changes in microstructure specimens. results revealed that difference between unopened with without cooling 70%...
The impact of cyclic footage and intermediate principal stress on the stability tunnel-face area are analyzed in this study using theory limit analysis. introduces unified strength proposes three-dimensional logarithmic spiral failure modes with corresponding velocity fields. influence various parameters is analyzed, it found that when internal friction angle less than 30°, should be improved first to enhance stability, while greater cohesion prioritized. When double shear uniform area, can...
The anchorage structure is a complex bearing system with undetermined failure modes. According to the component characteristics, we established segmented diagram for characteristics and at segment. In addition, described patterns of subsystems further series model bolted reinforced system. Moreover, according total displacement time-dependent deformation bolt, nonlinear creep analyze viso-plastic M-C element. Furthermore, considering shear strength anchored soil, assumed that cohesion...
Muzzle strong impact is a new test method of gun firing simulation method. Based on the virtual prototyping technology, hydraulic technology and rubber tests, model, power system model material waveform generator were established. Finally, machine was obtained. Simulation results indicated that can simulate dynamic characteristic recoil mechanism load distribution key components, for example, turret race, trunnion, belt segment, torsional axis sprocket so on..
To investigate different responses of direct and indirect tensile strengths to loading rate, tension tests were performed on sandstone, rust stone, granite specimens. Typical load curves indicate that a peak stress frequently appears before the second stress, used calculate strength in tests. As expected, increase rate increases strength. In addition, calculated are higher. Interestingly, ratio with is verify above results, crack propagation evolution dynamically monitored using PFC 3D. For...
Abstract To promote surface crack incisions between indentations, we first prefabricated CCS (constant cross section) indenters and modified by adding cutting teeth on the indenters. The subsequent indentation tests, using indenters, indicate that can effectively incisions, initiating from contact points rock. In addition, promoted form more thick chips whereas consumed energy of is close to indenter. Thus, indenter efficiency.