A5054881962- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- High-Velocity Impact and Material Behavior
- Metallurgy and Material Forming
- Surface Treatment and Residual Stress
- Metal and Thin Film Mechanics
- Tunneling and Rock Mechanics
- Metal Forming Simulation Techniques
- Fatigue and fracture mechanics
- Aluminum Alloys Composites Properties
- Erosion and Abrasive Machining
- Probabilistic and Robust Engineering Design
- Diamond and Carbon-based Materials Research
- Mechanical Behavior of Composites
- Energetic Materials and Combustion
Beijing Institute of Technology
2017-2024
The aim of this work is to analyze the micro mechanisms underlying wear macroscale tools during diamond machining SiCp/Al6063 composites and develop mechanism-based model in relation dominant behaviors. During drilling, high volume fraction containing Cu, tool involve thermodynamically activated physicochemical due diamond-graphite transformation catalyzed by Cu air atmosphere mechanically driven abrasive high-frequency scrape hard SiC reinforcement on surface. An analytical model, coupling...
For the implementation of simulations for large plastic deformation processes such as cutting and impact, development constitutive models describing accurately dynamic plasticity damage behaviors materials plays a crucial role in improvement simulation accuracy. This paper focuses on 45CrNiMoVA ultra-high-strength torsion bar steel. According to investigation Split-Hopkinson pressure (SHPB) tensile (SHTB) tests at different strain rate temperatures, steel is characterized by hardening,...
In this paper, we attempts to investigate cutting mechanisms in high-speed of Al6061/SiCp/15p composites using a semi-phenomenologically based damage model the equivalent homogeneous material (EHM) framework. By combining macroscale EHM modeling and underlying microscale physical mechanisms, feasible semi-phenomenological plastic is proposed for prediction forces chip morphology during turning composites. This incorporates modified Weibull weakest-link effect represent strain-based evolution...
Discrepancies in capturing material behavior of some materials, such as Particulate Reinforced Metal Matrix Composites, by using conventional ad hoc strategy make the applicability Johnson-Cook constitutive model challenged. Despites applicable efforts, its extended formalism with more fitting parameters would increase difficulty identifying parameters. A weighted multi-objective for any is developed to predict mechanical static and dynamic loading conditions equally well. These varying...
18Ni maraging steel is normally used to make key components by machining processes. It necessary understand the fracture mechanism and behaviour of for study further optimisation In this paper, Split Hopkinson Tensile Bar tests accompanied quasi-static mechanical are carried out relate stress triaxiality, deformation temperature strain rate with strain. During building up model, it noticed that change from 600°C 900°C brings about a non-linear relationship temperature. This results in large...