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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Voreux, Olivier
Office National d'Études et de Recherches Aérospatiales
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Publications (5/5 displayed)
- 2022High temperature fatigue crack growth modeling in Nickel-based superalloys using a local approach to fracture
- 2020Fatigue crack propagation modeling in Nickel-based superalloys using a local approach to fracture
- 2019Fatigue crack propagation modeling using a local approach to fracture ; Modélisation de la propagation de fissure en fatigue par une approche locale de la rupture
- 2019Fatigue crack propagation modeling using a local approach to fracture ; Modélisation de la propagation de fissure en fatigue par une approche locale de la rupture
- 2019Fatigue crack propagation modeling using a local approach to fracture
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document
Fatigue crack propagation modeling using a local approach to fracture
Abstract
This study concerns the analysis of cracking in Nickel-base superalloys used in the hot zones of aeronautical turbines. For this purpose, a time-incremental fatigue crack propagation model using damages coupled to the elasto-viscoplastic behavior of the material is developed using a local approach to fracture. In order to take into account for both complex phenomena occuring in the vicinity of the crack tip, possible instabilities of cracking, and the type of loading; damages caused by creep, ductility and oxidation may interact with fatigue. To obtain mesh-independent results when performing Finite Element calculations, non-local methods are then considered.