Evaluation of local stress and strain state at notch root by means of a new method valid for multiaxial random loadings - Mines Paris Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

Evaluation of local stress and strain state at notch root by means of a new method valid for multiaxial random loadings

Résumé

Neuber type methods are widely used to predict the local stress-strain behaviour at notch root in specimens or industrial components. Some limitations of these methods are pointed out in the present paper, especially when the global loading is multiaxial and/or random. A fully new approach is then presented: it introduces a phenomenological model describing the development of residual stresses that can be calibrated by reference to Eshelby's type approaches. A tensorial variable is used for this purpose. Its evolution rule allows us to represent the stress redistribution at the surface of the component. Isotropic and anisotropic constitutive equations are accepted for the description of the material behaviour. It has been successfully used for several complex situations (cyclic, multiaxial, random loadings).

Domaines

Matériaux
Fichier principal
Vignette du fichier
Herbland-Cailletaud-Quilici_ICF_12_Ottawa_2009.pdf (768.27 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-00822193 , version 1 (14-05-2013)

Identifiants

  • HAL Id : hal-00822193 , version 1

Citer

Thibault Herbland, Georges Cailletaud, Stéphane Quilici. Evaluation of local stress and strain state at notch root by means of a new method valid for multiaxial random loadings. International conference on fracture, Jul 2009, Ottawa, Canada. 10 p. ⟨hal-00822193⟩
245 Consultations
102 Téléchargements

Partager

Gmail Facebook X LinkedIn More