| Téléchargement | - Voir la version de l’auteur : Residual stress effects of a fatigue crack on guided lamb waves (PDF, 2.7 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1088/1361-665X/aa8a0c |
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| Auteur | Rechercher : Martinez, Marcias J.; Rechercher : Pant, Shashank1; Rechercher : Yanishevsky, Marko1; Rechercher : Backman, David1 |
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| Affiliation | - Conseil national de recherches du Canada. Aérospatiale
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| Format | Texte, Article |
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| Résumé | Structural health monitoring has focused on the use of computational models to capture the effect of crack-like discontinuities on the behaviour of acoustic-ultrasonic signals. However, few models have taken into account the effect of geometric complexity in combination with residual stresses generated during the fatigue crack growth process. In this study, a finite element analysis model of a C-channel type aeronautical structure is evaluated under a pitch-catch scenario. Three different finite element model configurations were considered in order to understand the effects that residual stresses of a fatigue crack emanating from a through-hole have on the guided Lamb wave propagation behaviour. The results demonstrate that numerical modelling is able to capture the change in amplitude and the effect of a phase shift on the guided Lamb wave behaviour due to the presence of the discontinuity and the stress field generated during the fatigue crack growth process. |
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| Date de publication | 2017-09-04 |
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| Maison d’édition | IOP Publishing |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23002233 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5a0dd84c-474b-49cc-a59d-a856f096162f |
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| Enregistrement créé | 2017-09-12 |
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| Enregistrement modifié | 2020-03-16 |
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