Numerical Simulation of Heat-Based Processes
- PROCESS DESCRIPTION
SMU’s Center for Laser Aided Manufacturing (CLAM) has been developing numerical simulation of heat and mass transfer in different material processing techniques (cladding, heat treatment and welding), as well as of the erosion of surface impacted by solid particles mixed with liquid. These simulation techniques provide the end-user with the optimized process parameter windows using only a limited number of experiments.
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| Temperature distribution (left) and fluid flow (right) in the molten pool of laser multilayered cladding |
Temperature field of submerged arc welding predicted by FE model for different joint configurations |
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| Sequential contours of equivalent stress distribution at the eroded surface impacted by continuous solid particles mixed with liquid |
Development of a user friendly interface for parameters
optimization in the erosion process |
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| The contours of equivalent stress of adhesively bonded joint under solid particle impact |
- CURRENT TOPICS OF RESEARCH
- Modeling of heat transfer and fluid flow in laser-based manufacturing processes: welding, hybrid laser/arc welding, heat treatment, cladding, paint stripping, surface texturing, micro-welding, micro-drilling, micro-cutting
- Modeling of microstructure evolution in laser-based manufacturing processes
- Prediction of residual stresses and the level of distortion in laser-based manufacturing processes
- Dynamic analysis of adhesively boned joints under impact load
- Fatigue life prediction of laser welds
- Thermal implicit-to-explicit modeling of roller hemming of aluminum sheets with laser preheating
- Explicit modeling of erosion process of surface impacted by solid particles
- Numerical simulation of heat transfer and the level of residual stresses in the submerged arc welding
- RECENT PUBLICATIONS
- Fanrong Kong, Radovan Kovacevic. Modeling of heat transfer and fluid flow in the laser multilayered cladding process. Metallurgical and Materials Transactions B, 2010, 41(6): 1310-1320.
- S. Santhanakrishnan, Fanrong Kong, and Radovan Kovacevic. An experimentally-based thermo-kinetic hardening model for high power direct diode laser cladding. Journal of Materials Processing Technology. 2011, 211 (7): 1247-1259.