Method of fabricating a mechanical part, including a method of predicting the risks of crack initiation in the part in a “fretting-fatigue” situation

摘要

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).