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Experimental study of the impact of punching operations on the high cycle fatigue strength of Fe-Si thin sheets
hal.structure.identifier | Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD] | |
hal.structure.identifier | Institut de Mécanique et d'Ingénierie [I2M] | |
dc.contributor.author | DEHMANI, Helmi | |
hal.structure.identifier | Institut de Mécanique et d'Ingénierie [I2M] | |
dc.contributor.author | BRUGGER, Charles | |
hal.structure.identifier | Institut de Mécanique et d'Ingénierie [I2M] | |
dc.contributor.author | PALIN LUC, Thierry
IDREF: 136498752 | |
hal.structure.identifier | Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD] | |
dc.contributor.author | MAREAU, Charles | |
hal.structure.identifier | Emerson-Leroy Somer | |
dc.contributor.author | KOECHLIN, Samuel | |
dc.date.accessioned | 2021-05-14T09:36:30Z | |
dc.date.available | 2021-05-14T09:36:30Z | |
dc.date.issued | 2016 | |
dc.identifier.issn | 0142-1123 | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/76283 | |
dc.description.abstract | In this paper, the impact of punching operations on the high cycle fatigue strength of Fe–Si thin sheets is investigated. High cycle fatigue tests are performed on both punched and polished edge specimens. Results show a significant decrease of the fatigue strength in the case of punched specimens. Different factors are found to be responsible for this degradation. First, according to SEM observations of fracture surfaces and to 3D surface topography, fatigue crack initiation is strongly governed by the geometrical defects resulting from punching operations. Second, important tensile residual stresses, which are analyzed using X-ray diffraction techniques, are observed on punched edges. Depending on the loading conditions, it is possible for the residual stress field to be redistributed as a result of cyclic plasticity. Third, punching operations are responsible for the introduction of a plastically hardened zone which, according to both micro-hardness measurements and diffraction data, is about 200 µm deep. Based upon this experimental dataset, the parameters of the Murakami criterion are identified. This criterion is found to provide a reasonable description of the experimental results when the residual stresses around punched edges are accounted for. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject | Fe–Si steel sheet | |
dc.subject | High cycle fatigue | |
dc.subject | Crack initiation | |
dc.subject | Punching | |
dc.subject | Defect | |
dc.title | Experimental study of the impact of punching operations on the high cycle fatigue strength of Fe-Si thin sheets | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.ijfatigue.2015.09.030 | |
dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph] | |
dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Génie mécanique [physics.class-ph] | |
bordeaux.journal | International Journal of Fatigue | |
bordeaux.page | 721–729 | |
bordeaux.volume | 82, Part 3 | |
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-02486114 | |
hal.version | 1 | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02486114v1 | |
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