A simple multiaxial fatigue criterion for metals

Camilla de Andrade Gonçalves; José Alexander Araújo; Edgar Nobuo Mamiya

doi:10.1016/j.crme.2004.09.003

A simple multiaxial fatigue criterion for metals

Presented by: Évariste Sanchez-Palencia

Camilla de Andrade Gonçalves ¹; José Alexander Araújo ¹; Edgar Nobuo Mamiya ¹

¹ Departamento de Engenharia Mecânica, Universidade de Brasília, 70910-900 Brasília, DF, Brasil

Comptes Rendus. Mécanique, Volume 332 (2004) no. 12, pp. 963-968.

Abstract
Résumé

A new simple multiaxial high-cycle fatigue endurance criterion, suitable for situations where the convex hull associated with the stress path approximates well an ellipsoid, is proposed. It considers, as measures of fatigue solicitation: (i) a new definition for the equivalent shear stress amplitude; and (ii) the maximum principal stress along the stress history. Assessment of the resulting criterion for a wide range of in-phase and out-phase cyclic loads shows that it compares very well with experimental data published in the literature.

On propose un critère simple d'endurance à la fatigue polycyclique, applicable à des situations pour lesquelles l'envelope convexe associé à l'histoire des contraintes s'approche bien d'une ellipse. Le critère considère, comme mesures de solicitation à la fatigue : (i) une nouvelle définition de l'amplitude de contrainte de cisaillement ; et (ii) la contrainte principale maximale au cours de l'histoire de chargement.

Received: 2003-12-14
Accepted: 2004-09-22
Published online: 2004-11-17

DOI: 10.1016/j.crme.2004.09.003

Keywords: Fatigue, Fatigue strength, Multiaxial high-cycle fatigue, Nonproportional loading
Mots-clés : Fatigue, Éndurance à la fatigue, Fatigue multiaxiale polycyclique, Chargement non-proportionel

Author's affiliations:

Camilla de Andrade Gonçalves ¹; José Alexander Araújo ¹; Edgar Nobuo Mamiya ¹

¹ Departamento de Engenharia Mecânica, Universidade de Brasília, 70910-900 Brasília, DF, Brasil

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     title = {A simple multiaxial fatigue criterion for metals},
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Camilla de Andrade Gonçalves; José Alexander Araújo; Edgar Nobuo Mamiya. A simple multiaxial fatigue criterion for metals. Comptes Rendus. Mécanique, Volume 332 (2004) no. 12, pp. 963-968. doi : 10.1016/j.crme.2004.09.003. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2004.09.003/

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