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HCF of AA7050 alloy containing surface defects: Study of the statistical size effect
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hal.structure.identifier | Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA] | |
dc.contributor.author | ABROUG, Foued | |
hal.structure.identifier | Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA] | |
dc.contributor.author | PESSARD, Etienne | |
hal.structure.identifier | Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA] | |
dc.contributor.author | GERMAIN, Guenaël | |
hal.structure.identifier | Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA] | |
dc.contributor.author | MOREL, Franck | |
dc.date.accessioned | 2021-05-14T09:41:13Z | |
dc.date.available | 2021-05-14T09:41:13Z | |
dc.date.issued | 2018-05 | |
dc.identifier.issn | 0142-1123 | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/76636 | |
dc.description.abstract | This work investigates the effect of artificial surface defects on the fatigue limit of a 7050 Aluminum alloy (AlZn6CuMgZr). A large fatigue testing campaign under fully reversed plane bending loading is undertaken on specimen with artificial surface hemispherical defects. The defect number was varied from 1 to 44 defects per specimen and the diameter size ranged from 60 μm to 800 μm. The test results allow the characterization of both the defect effect and scale effect on the fatigue behavior of the material. A probabilistic approach based on the weakest link concept together with a fatigue crack initiation criterion are used to account for the stress distribution and the size of the highly stressed volume. This approach leads to a probabilistic Kitagawa-Takahashi type diagram, which in this case explains the relationship between the defect size and the scale effect on thefatigue strength. The predictions show good agreement with the experimental results and illustrate the importance of taking the scale effect into account when designing components containing different surface defects types or roughness patterns. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject | Mechanics of Materials | |
dc.subject | Mechanical Engineering | |
dc.subject | Modelling and Simulation | |
dc.subject | Industrial and Manufacturing Engineering | |
dc.subject | General Materials Science | |
dc.title | HCF of AA7050 alloy containing surface defects: Study of the statistical size effect | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.ijfatigue.2018.01.012 | |
dc.subject.hal | Sciences de l'ingénieur [physics] | |
bordeaux.journal | International Journal of Fatigue | |
bordeaux.page | 81-94 | |
bordeaux.volume | 110 | |
bordeaux.hal.laboratories | Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295 | * |
bordeaux.institution | Université de Bordeaux | |
bordeaux.institution | Bordeaux INP | |
bordeaux.institution | CNRS | |
bordeaux.institution | INRAE | |
bordeaux.institution | Arts et Métiers | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-02282721 | |
hal.version | 1 | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02282721v1 | |
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