Patents by Inventor Stephane Heredia

Stephane Heredia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of fabricating a mechanical part, including a method of predicting the risks of crack initiation in the part in a “fretting-fatigue” situation
    Patent number: 9081922
    Abstract: A method of fabricating a mechanical part of structure that is defined relative to a predictive search of the risks of crack initiation therein by using a method of calculation by finite elements. A coarse mesh (9) is taken into account, and the individual size of the meshes (20) and a critical distance (d) are defined jointly by an operator. The meshes (20) making up the mesh (9) are defined to be of identical mesh size, with the critical distance (d) being defined as the sum of an integer number of depth dimensions of said meshes (20). If the results of the calculation by finite elements diverge, then a calibration weighting function is advantageously applied that takes account of the size of the meshes (20) by taking account of the critical distance (d).
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: July 14, 2015
    Assignee: Airbus Helicopters
    Inventors: Siegfried Fouvry, Stephane Heredia, Bruno Berthel, Eric Greco
  • METHOD OF FABRICATING A MECHANICAL PART, INCLUDING A METHOD OF PREDICTING THE RISKS OF CRACK INITIATION IN THE PART IN A "FRETTING-FATIGUE" SITUATION
    Publication number: 20140000080
    Abstract: A method of fabricating a mechanical part of structure that is defined relative to a predictive search of the risks of crack initiation therein by using a method of calculation by finite elements. A coarse mesh (9) is taken into account, and the individual size of the meshes (20) and a critical distance (d) are defined jointly by an operator. The meshes (20) making up the mesh (9) are defined to be of identical mesh size, with the critical distance (d) being defined as the sum of an integer number of depth dimensions of said meshes (20). If the results of the calculation by finite elements diverge, then a calibration weighting function is advantageously applied that takes account of the size of the meshes (20) by taking account of the critical distance (d).
    Type: Application
    Filed: June 12, 2013
    Publication date: January 2, 2014
    Inventors: Siegfried Fouvry, Stephane Heredia, Bruno Berthel, Eric Greco