Method for characterizing the endurance limit of a part from its surface profile

Vivian Vergnes (1) , Rémy Chieragatti (2) , Catherine Mabru (2) , Christine Espinosa (2) , Monchai Suraratchai (2)

1 Airbus [France]
2 ICA - Institut Clément Ader

The invention concerns a method for characterizing the endurance limit of a part from the state of its surface including the following steps: reading geometrical data describing the surface profile of the zone the endurance limit of which is to be determined, appling said date to a computing model so as to work out an estimate of the field of mechanical stresses in said zone of said part, deducing fron said estimate of the field of stresses at least one quantity characteristic of the endurance behavior of th epart.

Mots clés: Roughness; Surface profile; Stress concentration; Aluminum; Endurance limit

Domaines: Autre

Vivian Vergnes, Rémy Chieragatti, Catherine Mabru, Christine Espinosa, Monchai Suraratchai. Method for characterizing the endurance limit of a part from its surface profile. France, N° de brevet: US 8082114 B2. SUMO; MS2M. 2011, pp.0. ⟨hal-02159829⟩