A Modified Neuber Method Avoiding Artefacts Under Random Loads

Créé le : 09/09/2010 - Mis à jour le : 15/11/2012

Surprisingly,Neuber's method is in error when applied to non regular cyclic loads. Some examples are first shown, in which the predicted result by the classical formulation produces a non physical local ratchetting in the notch, for a global load made of a large symmetric cycle and of a small cycle inside the large one. A modification of the original method is then propopsed to avoid the occurence of this artefact. It is successfully tested against finite element computations on several notched specimens.