An experimental and numerical study of the high cycle multiaxial fatigue strength of titanium lattice structures produced by Selective Laser Melting (SLM)
| Autor: | Charles Brugger, Marco Montemurro, Nicolas Saintier, Khalil Refai |
|---|---|
| Přispěvatelé: | Institut de Mécanique et d'Ingénierie (I2M), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Additive manufacturing chemistry.chemical_element 02 engineering and technology Crystal structure Industrial and Manufacturing Engineering 0203 mechanical engineering Surface roughness Homogenisation General Materials Science Selective laser melting Composite material Extreme value theory Mechanical Engineering Multiaxial high-cycle fatigue Fatigue testing 021001 nanoscience & nanotechnology Fatigue limit 020303 mechanical engineering & transports chemistry Mechanics of Materials Modeling and Simulation [SDE]Environmental Sciences Lattice structures 0210 nano-technology Titanium |
| Zdroj: | International Journal of Fatigue International Journal of Fatigue, Elsevier, 2020, 138, pp.1-14. ⟨10.1016/j.ijfatigue.2020.105623⟩ |
| ISSN: | 0142-1123 |
| Popis: | International audience; A numerical approach is proposed to assess the high cycle fatigue (HCF) strength of periodic cellular structures produced by Selective Laser Melting under multiaxial loads. The model is based on a general numerical homogenisation scheme and an explicit description of the Elementary Cell (EC) combined to an extreme values analysis making use of a fatigue indicator parameter based on Crossland’s criterion. This method is applied to 33 EC topologies.In addition, geometric discrepancy and surface roughness are experimentally characterised and considered in the numerical model using three methods which are compared to the experimental HCF strength. |
| Databáze: | OpenAIRE |
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