A5051520006- Fatigue and fracture mechanics
- Aluminum Alloy Microstructure Properties
- Corrosion Behavior and Inhibition
- Mechanical Behavior of Composites
- Non-Destructive Testing Techniques
- Erosion and Abrasive Machining
- Numerical methods in engineering
- Surface Treatment and Residual Stress
- Advanced Photocatalysis Techniques
- Hydrogen embrittlement and corrosion behaviors in metals
- Concrete Corrosion and Durability
- Metal and Thin Film Mechanics
- Catalytic Processes in Materials Science
- Anodic Oxide Films and Nanostructures
- Manufacturing Process and Optimization
- TiO2 Photocatalysis and Solar Cells
- Geotechnical Engineering and Underground Structures
- Composite Structure Analysis and Optimization
- Welding Techniques and Residual Stresses
- High-Velocity Impact and Material Behavior
- High Temperature Alloys and Creep
- Gas Dynamics and Kinetic Theory
- Engineering and Information Technology
- Topology Optimization in Engineering
- Thermal properties of materials
Shaanxi University of Science and Technology
2022-2025
Northwestern Polytechnical University
2015-2024
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2020-2024
Vaughn College of Aeronautics and Technology
2024
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
2020-2023
Composite materials have been widely used in recent years due to an attractive combination of superior physical properties. Since the macroscopic properties a composite material are determined by microscopic structure bottom layers, it is critical calculate elastic modulus single-layer plates using component material(s) scientific and effective manner. The traditional Halpin–Tsai model only considers two when calculating modulus. This paper proposes improved considering three-phase...
The mechanochemical effects of elasticity and plasticity are introduced into a peridynamic (PD) corrosion model. A PD equation that couples the mechanics kinetics electrochemistry is proposed for first time. This clarifies influence mechanical load in governing occurrence diffusion during corrosion. phase changes experienced by material used to characterize movement boundary, concentration points degree extent damage caused chosen metal. Immersion tests situ electrochemical carried out,...
In this paper, the mechanical behavior and damage evolution of CFRP laminates under three-point bending loads were investigated. Based on three-dimensional Hashin failure criterion cohesive zone method, a progressive analysis model was constructed to predict seven different modes, an improved stiffness matrix degradation law proposed. Numerical simulations performed using ABAQUS finite element software UMAT user subroutines verified by tests. The experimental results show that relative...
After shot peening, the 7050 aluminum alloy has good anti-fatigue and anti-stress corrosion properties. In peening process, pellet collides with target material randomly, generated residual stress distribution on surface, which great significance to improve property. this paper, a simplified numerical simulation model of was established. The influence collision velocity, position time interval studied, is simulated by ANSYS/LS-DYNA software. analysis results show that different positions...
Tooth root bending fatigue performance is the primary consideration in gear design. To investigate difference between tooth performances of shot peened and base material, TM210A steel gears double-tooth pulsating experiment with a stress ratio 0.05 was carried out on experimental by group method staircase method. The life different levels conditional limit under 1 × 107 cycles were obtained, S-N curves fitted double-weighted least squares residual measured X-ray diffraction method, field at...
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Aluminum alloys have over the years grown both in stature and strength so as to be a prime of “preferred” candidate for use spectrum applications industries spanning aerospace automotive. However, aluminum are often susceptible failure. This necessitated need careful, cautious, complete study their safety durability. At present, research into understanding creep behavior is focused on high-temperatures with little attention being given upon exposure aggressive aqueous environments. In this...
Surface quality is an important factor that exerts a profound influence on both the extent and severity of damage due to corrosion experienced by aircraft structure. In this study, quantitative method was used determine surface roughness analyzed scanning selected specimens chosen aluminum (Al) alloy with aid scanner. Accelerated experiments alloy, namely, 2A12, were performed in laboratory air environment analyze initiation growth pitting corrosion. Results revealed that, during early...
Abstract When conducting corrosion fatigue tests on metal materials, it is found that the test results obtained or process of manually sorting out these experimental data sometimes produce some abnormal are obviously different from other data. These have a great impact processing and analysis, also cause certain difficulties in systematic management data.Therefore, developing system for experiments, module calculating screening material was designed.The written java language, which can...
In this paper, a new optimization design strategy is explored to achieve rapid of lightweight structures for unmanned aerial vehicles (UAVs) using honeycomb sandwich panels. Based on the existing performance equivalent method core material, an effective mechanical property homogenization model material proposed and applied finite element analysis. A established analyze response panels under different bending loads, rationality verified by tests. The error between simulation results...
We carried out a comparative study on both the stress corrosion response and damage characteristics of aluminum alloy 2219, base material friction stir welding (FSW) counterpart upon exposure to exfoliation (EXCO) solution. The results reveal that test specimen containing an FSW joint reveals better electrochemical resistance than taken from metal. When specimens EXCO solution are concurrently subjected tensile stress, since mechanical properties lower metal, is more easily prone early...
The fracture morphology and fatigue life of pre-corroded 7050 aluminium alloys were studied under constant block amplitude loading. It was found that the pits depth/radius ratio is mainly distributed between 0·05 20 after 12 hours corrosion. A thermal infrared imager used to monitor surface temperature sheet specimen during tests, which showed an increase 0·7–1°C. This stage took up a small proportion overall cycle. corrosion modified equivalent initial flaw size model applied back-calculate...
Corrosion can lead to mechanical damage near the material surface and reduce material’s strength. It is essential understand simulate corrosion evolution for predicting residual service life of engineering structure, reliability analysis, corrosion-resistant design materials. Several major novel simulation methods in past 10 y are mainly introduced: cellular automata method, finite element phase field model, peridynamics model. The computational modeling localized discussed advantages...