• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • View Item
  • Home
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

A flexible HCF modeling framework leading to a probabilistic multiaxial Kitagawa-Takahashi diagram

Communication avec acte
Author
ccBELLETT, Daniel
ccPESSARD, Etienne
ccMOREL, Franck
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]

URI
http://hdl.handle.net/10985/8941
DOI
10.4028/www.scientific.net/AMR.891-892.1372
Date
2014

Abstract

This article describes a flexible modeling framework which leads to the construction of a probabilistic, multiaxial Kitagawa-Takahashi diagram. This framework has been developed following experimental observations that clearly indicate that two independent fatigue damage mechanisms can be activated, at the same time, in metallic materials. Specifically, one damage mechanism is associated with crack initiation and the other with crack arrest. It is postulated that these damage mechanisms are more appropriately modeled using two different fatigue criteria or, more specifically, two completely different approaches to fatigue (i.e. a classical multiaxial fatigue criterion and a LEFM type criterion). Hence, the proposed modeling framework provides the possibility of combining any two suitable criteria, in a probabilistic framework based on the weakest link hypothesis and results in the continuous description of the Kitagawa diagram for any multiaxial stress state. It is shown that under certain conditions this approach is equivalent to the classical El Haddad approach to the short crack problem encountered in LEFM. However, the proposed framework is easily extended to multiaxial loading conditions. This modeling framework is demonstrated in detail via its application to multiaxial fatigue data for data taken from the literature.

Files in this item

Name:
LAMPA_FATIGUE2014_BELLETT_2014.pdf
Size:
495.2Kb
Format:
PDF
View/Open

Collections

  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)

Related items

Showing items related by title, author, creator and subject.

  • A new approach to model the fatigue anisotropy due to non-metallic inclusions in forged steels 
    Article dans une revue avec comité de lecture
    BELLETT, Daniel; MOREL, Anne; ccMOREL, Franck; ccPESSARD, Etienne (Elsevier, 2012)
    The objective of this work is to propose an anisotropic fatigue criterion for the sizing of industrial forged components. The results from different experimental campaigns using three different rolled steels are first ...
  • Modelling the role of non metallic inclusions on the anisotropic fatigue behaviour of forged steel 
    Article dans une revue avec comité de lecture
    ccPESSARD, Etienne; ccMOREL, Franck; MOREL, Anne; ccBELLETT, Daniel (Elsevier, 2011)
    Forged components are known to show high cyclic and monotonic mechanical properties. This is mainly due to a better compactness and a finer microstructure introduced by the forming process. However, this good mechanical ...
  • Fatigue behaviour of gear teeth made of case hardened steel: from competing mechanisms to lifetime variability 
    Communication avec acte
    ARGOUD, Vincent; ccMOREL, Franck; ccPESSARD, Etienne; ccBELLETT, Daniel; THIBAULT, Simon; GOURDIN, Stéphane (Elsevier BV, 2019-12-24)
    Jet engines gears are generally made of steel and are case-strengthened via thermochemical treatments such as carburizing or nitriding causing microstructural modifications, superficial hardening and compressive residual ...
  • A flexible modelling framework leading to a pobabilistic multiaxial Kitagawa-Takahashi diagram : applied to cast Al-Si alloys 
    Communication avec acte
    ccLE, Viet-Duc; ccBELLETT, Daniel; ccMOREL, Franck; ccSAINTIER, Nicolas; ccPALIN-LUC, Thierry; ccPESSARD, Etienne; OSMOND, Pierre (MATEC Web of Conferences, 2014)
    The aim of this work is to propose simple analytical tools to predict the fatigue strength of cast aluminium components as a function of the casting process and post-cast treatment. The proposed methodology is based on the ...
  • Microstructural-based analysis and modelling of the fatigue behaviour of cast Al-Si alloys 
    Communication avec acte
    ccLE, Viet-Duc; ccMOREL, Franck; ccBELLETT, Daniel; ccPESSARD, Etienne; ccSAINTIER, Nicolas; OSMOND, Pierre (Elsevier, 2015)
    This paper describes a microstructural-based high cycle fatigue behaviour model applied to cast Al-Si alloys used in an automobile context. These materials are characterized by the presence of different microstructural ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales