Incorporating strain gradient effects in a multi-scale constitutive framework for nickel-base superalloys - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Philosophical Magazine Année : 2009

Incorporating strain gradient effects in a multi-scale constitutive framework for nickel-base superalloys

Résumé

An efficient multi-scale constitutive framework for nickel-base superalloys is proposed that enables the incorporation of strain gradient effects. Special interface regions in the unit cell contain the plastic strain gradients that govern the development of internal stresses. The model is shown to accurately simulate the experimentally observed size effects in the commercial alloy CMSX-4. The limited complexity of the proposed unit cell and the micromechanical simplifications make the framework particularly efficient in a multi-scale approach. This is demonstrated by applying the model in a gas turbine blade finite element analysis.

Mots clés

Fichier principal
Vignette du fichier
PEER_stage2_10.1080%2F14786430802337089.pdf (2.27 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00513940 , version 1 (01-09-2010)

Identifiants

Citer

Tiedo Tinga, Marcel Brekelmans, Marc Geers. Incorporating strain gradient effects in a multi-scale constitutive framework for nickel-base superalloys. Philosophical Magazine, 2009, 88 (30-32), pp.3793-3825. ⟨10.1080/14786430802337089⟩. ⟨hal-00513940⟩

Collections

PEER
143 Consultations
118 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More