Characterization of Casting Pores in Fe-rich Al-Si-Cu Alloys by Microtomography and Finite Element Analysis
| Autor: | Angelika Brueckner-Foit, I. Bacaicoa, M. Luetje, Marcel Wicke |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
3D reconstruction 02 engineering and technology 021001 nanoscience & nanotechnology Casting Finite element method Characterization (materials science) Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering Tomography Composite material 0210 nano-technology Earth-Surface Processes Shrinkage Stress concentration |
| Zdroj: | Procedia Structural Integrity. 2:2643-2649 |
| ISSN: | 2452-3216 |
| DOI: | 10.1016/j.prostr.2016.06.330 |
| Popis: | An accurate methodology has been developed to identify local stress concentration on the contour of casting pores in high Fe-content Al-Si-Cu alloys. It relies on the 3D reconstruction of the pore morphology by micro-computed tomography (μ-CT), which was converted into a 3D volumetric model to be used as an input for linear finite element analysis (FEA) with the aim of investigating the structural influence of these defect. In combination with an appropriate visualization of the results, this treatment allowed localizing highly stressed regions. Results indicate that particularly holes in the shape of shrinkage pores act as stress concentrators and can thus be identified as hot spots. |
| Databáze: | OpenAIRE |
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