A5102770841- Advanced materials and composites
- Mechanical Behavior of Composites
- Cellular and Composite Structures
- Injection Molding Process and Properties
- Aluminum Alloys Composites Properties
- Pickering emulsions and particle stabilization
- Metal Alloys Wear and Properties
- Hydrogen Storage and Materials
- Superconductivity in MgB2 and Alloys
- Polymer composites and self-healing
- Metal and Thin Film Mechanics
- Structural Behavior of Reinforced Concrete
- Heat and Mass Transfer in Porous Media
- Magnesium Alloys: Properties and Applications
- Nanofabrication and Lithography Techniques
- Advanced Welding Techniques Analysis
- Combustion and flame dynamics
- Composite Material Mechanics
- Ammonia Synthesis and Nitrogen Reduction
- Mechanical Engineering and Vibrations Research
- High Entropy Alloys Studies
- Engineering Applied Research
- Fusion materials and technologies
- Fluid Dynamics and Turbulent Flows
- Material Properties and Processing
Ji Hua Laboratory
2023-2024
Northwestern Polytechnical University
1994-2023
China Aerodynamics Research and Development Center
2023
Abstract The aim of this paper is to make a thorough comparison between Kagome and tetrahedral truss-cored lattices both experimentally numerically. Two titanium sandwich panels –one cored with the lattice other –are manufactured by 3D printing technology. Comparisons thermal insulation, inner flow pattern heat transfer two are completed subsequently according results from forced convective experiments numerical simulation. Within Reynolds number range interest for study, exhibits excellent...
The aim of this paper is to provide a comprehensive comparison the thermal insulation and heat transfer performance for Kagome truss-cored lattice along two perpendicular orientations OA OB. Three test conditions are conducted under forced air convection titanium sandwich panel fabricated by 3D printing technology. thermo-fluidic characteristics further explored numerical simulation reveal underlying mechanisms enhancement. results indicate that orientation OB exhibits better than identical...
Sheet molding compounds (SMCs) as an alternative material for low-cost and lightweight automotive structural components require special attention to their failure behavior collision safety. This study aims analyze the energy-absorbing response variability of unsaturated polyester matrix SMCs under range strain rates from 10 −3 /s 500/s through quasi-static dynamic tensile tests. Additionally, process fracture morphology were characterized using Digital Image Correlation Scanning Electron...
To improve the aerodynamic characteristics of compressor blades, a novel asymmetric leading edge (ASYLE) has been introduced and shown to offer superior performance. However, robustness such specially designed (LE) remains unclear due considerable uncertainty problems it presents. This paper investigates ASYLE blade under both geometric operational uncertainties. Profile deviations within ±0.05mm were investigate influence manufacturing errors. In addition, perturbated inflow angles between...
The hybrid woven fabric laminates exhibit excellent ballistic performance, however, the design method and resistance mechanism still call for investigation. paper presents a numerical model to describe damage behavior of composites, which is implemented in VUMAT subroutine. validity verified with experimental data glass-Kevlar composite terms residual velocity. further researches are carried out results reveal that placing one layer glass toward impact side followed by three layers Kevlar...
The representative volume element(RVE) of the computational micromechanics is established with random fiber distribution being generated by sequential expansion algorithm. plasticity matrix and interfacial decohesion are simulated using Drucker-Prager model cohesive zone respectively. effects strength on transverse compressive unidirectional composites analyzed. results show that a factor to cause instability strength. Meanwhile, plastic shear damage non dominated in compression failure....
0.5 wt.% SiC nanoparticles were added into pure tungsten powder via ball milling, and W-SiC composites prepared by spark plasma sintering method. The effect of temperature on the microstructure mechanical properties W-0.5SiC is investigated in this study. Tungsten carbide (W2C) silicon oxide (SiO2), which mainly distributed at grain boundaries, formed during process. size increased with increasing temperature. growth mechanism was discussed. parameters point out that control for SPSed...
In this paper, 0.5 wt.% SiC nano particles and pure tungsten poders were thoroughly mixed using ball milling, followed by sintering the mixture Spark Plasma Sintering (SPS) to obtain W-0.5SiC composite material block. Then, effect of temperature on microstructure mechanical properties composites was investigated. It found that carbide (W2C) silicon oxide (SiO2) phases formed at grain boundaris during process. Besides, size increased with increasing temperature. To better understanding...