A5100641597- Fatigue and fracture mechanics
- Mechanical Behavior of Composites
- Advanced Welding Techniques Analysis
- Advanced machining processes and optimization
- Metallurgy and Material Forming
- High Temperature Alloys and Creep
- Advanced Surface Polishing Techniques
- Epoxy Resin Curing Processes
- Gear and Bearing Dynamics Analysis
- Titanium Alloys Microstructure and Properties
- Fiber-reinforced polymer composites
- Aluminum Alloy Microstructure Properties
- Welding Techniques and Residual Stresses
- Material Properties and Applications
- Structural Load-Bearing Analysis
- Advanced Measurement and Metrology Techniques
- Composite Material Mechanics
- Mechanical Failure Analysis and Simulation
- High-Velocity Impact and Material Behavior
- Metal Forming Simulation Techniques
- Material Properties and Processing
- Intermetallics and Advanced Alloy Properties
- Electronic Packaging and Soldering Technologies
- Ultrasonics and Acoustic Wave Propagation
- Additive Manufacturing and 3D Printing Technologies
Nanjing University of Aeronautics and Astronautics
2006-2019
Nanjing University
2013
Changzhou Institute of Technology
2008
To develop further understanding towards the role of a heterogeneous microstructure on tensile crack initiation and failure behavior in chopped carbon fiber chip‐reinforced composites, uni‐axial tests are performed coupons cut from compression molded plaque with varying directions. Experimental results indicate that is relevant to strain localization, new criterion nominal modulus predict location proposed based analysis. Furthermore, optical microscopic images show determined by chip...
Many thin-walled structure components widely used in aero industries not only have complex and large size, but also need high machining accuracy. However, because of their poor rigidity, it is easy to bring deformation caused by the existence initial residual stresses, fixing cutting forces heat. The difficulty ensuring accuracy becomes a big problem, so that how effectively predict control has become an important subject development production our national defense weapons. This paper...
This study proposes a parameterized model of uniaxial symmetry non-circular hole, to improve conventional circular bolt clearance holes on turbine disks. The profile the consists eight smoothly connected arcs, radiuses which are determined by 5 design variables. By changing variables, hole can be transformed accommodate different load ratios, thereby improving stress concentration area near and that disk. is optimized based finite element method (FEM), in maximum first principal taken as...
The low cycle fatigue (LCF) characteristics of nickel-based single crystal (SC) superalloy have been experimentally and numerically investigated. effects crystallographic orientation, load ratio stress concentration are studied. In order to model the effect a new orientation factor, which is relevant yield strength, constructed. On other hand, asymmetrical loading factor introduced describe ratio. LCF for SC smooth specimen established with these damage parameters. strain gradient on life...
Fatigue and corrosion damage are the major concerns of automotive adhesive joints, yet literature reports few works about in situ fatigue durability joints corrosive environment. This study presents an investigation on single lap by test. The were manufactured with commercial coated AA5754-O aluminum sheets bonded a toughened epoxy structural adhesive. An chamber was designed employed to simulate humid environment spraying 5% saline solution or distilled water mist around joints’ overlap...
Abstract In this paper, a single crystal (SC) partition model, consisting of primary grains and grain defects, is proposed to simulate the weakening effect defects generated at geometric discontinuities SC materials. The plastic deformation superalloy described with modified yield criterion, associated flow rule hardening law. Then bicrystal model containing only one group misoriented under uniaxial loading constructed analyzed in commercial finite element software ABAQUS. simulation results...