Downscaled Finite Element Modeling of Metal Targets for Surface Roughness Level under Pulsed Laser Irradiation
| Autor: | Yannis Orphanos, Michael Tatarakis, I. Fitilis, Vasilis Dimitriou, Nektarios A. Papadogiannis, Angelos P. Markopoulos, Kyriaki Kosma, M. Bakarezos, A. Skoulakis, Evaggelos Kaselouris |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Surface (mathematics)
Materials science Scale (ratio) finite element method 02 engineering and technology Surface finish lcsh:Technology lcsh:Chemistry 0203 mechanical engineering Surface roughness General Materials Science lcsh:QH301-705.5 Instrumentation Fluid Flow and Transfer Processes White light interferometry lcsh:T Process Chemistry and Technology laser–solid interaction General Engineering Mechanics Acoustic wave 021001 nanoscience & nanotechnology Multiscale modeling multiscale modeling lcsh:QC1-999 Finite element method Computer Science Applications 020303 mechanical engineering & transports lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 surface roughness lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:Physics |
| Zdroj: | Applied Sciences Volume 11 Issue 3 Applied Sciences, Vol 11, Iss 1253, p 1253 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11031253 |
| Popis: | A three-dimensional, thermal-structural finite element model, originally developed for the study of laser&ndash solid interactions and the generation and propagation of surface acoustic waves in the macroscopic level, was downscaled for the investigation of the surface roughness influence on pulsed laser&ndash solid interactions. The dimensions of the computational domain were reduced to include the laser-heated area of interest. The initially flat surface was progressively downscaled to model the spatial roughness profile characteristics with increasing geometrical accuracy. Since we focused on the plastic and melting regimes, where structural changes occur in the submicrometer scale, the proposed downscaling approach allowed for their accurate positioning. Additionally, the multiscale simulation results were discussed in relation to experimental findings based on white light interferometry. The combination of this multiscale modeling approach with the experimental methodology presented in this study provides a multilevel scientific tool for an in-depth analysis of the influence of heat parameters on the surface roughness of solid materials and can be further extended to various laser&ndash solid interaction applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|