| DOI | Trouver le DOI : https://doi.org/10.1115/GT2020-15702 |
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| Auteur | Rechercher : Zhang, Zhong1; Rechercher : Wu, Xijia1 |
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| Affiliation | - Conseil national de recherches du Canada. Aérospatiale
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| Format | Texte, Article |
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| Conférence | ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, September 21 - 25, 2020, Virtual, Online |
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| Sujet | low cycle fatigue; life prediction; cyclic hardening; crack nucleation; hardening; low cycle fatigue; nucleation (physics) |
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| Résumé | A general fatigue life equation is derived by modifying the Tanaka-Mura-Wu dislocation pile-up model for variable strain-amplitude fatigue processes, where the fatigue crack nucleation life is expressed in terms of the root mean square of plastic strain range. Low-cycle fatigue tests were conducted on an austenitic stainless steel. at 400°C and 600°C, the material exhibits continuously cyclic-hardening behaviour. The root mean square of plastic strain ranges is evaluated from the experimental data for each test condition at strain rates ranging from 0.0002/s to 0.02/s. The variable-amplitude Tanaka-Mura-Wu model is found to be in good agreement with the LCF data, which effectively proves Miner’s rule on the stored plastic strain energy basis. |
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| Date de publication | 2020-09-21 |
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| Maison d’édition | American Society of Mechanical Engineers |
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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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| 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 | e9a73e21-0a40-44e6-97e5-d5bc2f08818f |
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| Enregistrement créé | 2022-05-10 |
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| Enregistrement modifié | 2022-05-10 |
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