Experimental investigations of internal and effective stresses during fatigue loading of high-strength steel

Abstract : Low cycle fatigue tests are performed on a high strength tempered martensitic steel at different plastic strain amplitudes at room temperature. Internal and effective components of the flow stress are analyzed using Handfield and Dickson's method. The internal stress is affected by the plastic strain amplitude. Conversely, the evolution of the athermal component of the effective stress with the number of cycles is independent of the plastic strain amplitude. The thermal part of the effective stress increases with the plastic strain amplitude, but remains constant with plastic strain accumulation. Microstructural changes in the cyclically deformed material are investigated by means of transmission electronic mycroscopy and X-Ray characterizations. Internal and effective stress evolutions are discussed based on these observations
Liste complète des métadonnées

Littérature citée [39 références]  Voir  Masquer  Télécharger

https://hal-emse.ccsd.cnrs.fr/emse-00979195
Contributeur : David Delafosse <>
Soumis le : mardi 15 avril 2014 - 15:00:37
Dernière modification le : mercredi 11 juillet 2018 - 18:36:03
Document(s) archivé(s) le : mardi 15 juillet 2014 - 11:11:27

Fichier

VuckoF-BoschC-DelafosseD-MSEA_...
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Flavien Vucko, Cédric Bosch, David Delafosse. Experimental investigations of internal and effective stresses during fatigue loading of high-strength steel. Materials Science and Engineering: A, Elsevier, 2014, 597, pp.381-386. 〈10.1016/j.msea.2014.01.016〉. 〈emse-00979195〉

Partager

Métriques

Consultations de la notice

389

Téléchargements de fichiers

346