Electronics Incorporated - The Shot Peener - Shot Peening Library
Title: Fatigue Strength Prediction of a Shot Peened 42CRMO4 Steel Using Multiaxial Fatigue Criterion and Surface Roughness Correctio
Author: Palin-Luc, Flavenot, Lasserre, Charles, Leguernic
Source: Conf Proc: ICSP-9 (pg 229-224)
Publication year 2005
Document number: 2005090
Number of pages: 6
Abstract:
ABSTRACT
High cycle multiaxial fatigue tests were carried out in fully reversed plane bending on smooth specimens made of 42CrMo4 steel. These specimens were machined and shot peened
under different operating conditions. The experimental endurance limits were compared with the predictions of a multiaxial fatigue strength model for shot peened components.
This model is based on the Crossland multiaxial fatigue criterion. It is able to take into account the effect, on the endurance limit, of the biaxial residual stresses due
to both the shot peening and the machining process. The roughness effect is considered by using a correction factor. A good estimation of the fatigue strength improvement
due to shot peening is predicted by the proposed model. Some evolutions are needed for instance to consider the effect of surface defects such as indents burrs and folds.
The influence of such factors on the fatigue strength can not be included in a single roughness parameter.
This paper not available. Book ICSP-9 is available at http://www.iitt.com OR Electronics Inc +1-574-256-5001
www.shotpeener.com
This page last revised: 04/24/2008