The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2021
Filed:
Jul. 19, 2016
Safran Aircraft Engines, Paris, FR;
Geoffrey Juan Desmeure, Moissy-Cramayel, FR;
Francois Pierre Michel Comte, Moissy-Cramayel, FR;
Anais Suzanne Amelie Gaubert, Moissy-Cramayel, FR;
Arnaud Cyril Longuet, Moissy-Cramayel, FR;
Marine Laetitia Camille Chevalier, Moissy-Cramayel, FR;
Michael Piers Hansom, Moissy-Cramayel, FR;
Lucie Marie Ida Lanciaux, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, JP;
Abstract
A method of determining a maximum acceptable alternating stress at a point of a part subjected to cyclic loading: simulating that the part is subjected to constant loading equal to a threshold value during a level period, and assuming that the part has elasto-viscoplastic behavior; from the results of the simulation, determining a final static stress at the point at the end or after the end of the level period; and for the point under consideration, using a Goodman diagram to determine the maximum acceptable alternating stress, which is determined for a static stress equal to the final static stress; the duration of the level period being equal to the duration of the loading of the testpieces that were used to draw up the Goodman diagram.