Browse Publications Technical Papers 2001-01-0828
2001-03-05

Design Tool on Fatigue for 3D Components With Consideration of Residual Stresses 2001-01-0828

This paper presents a fatigue design tool for three dimensional components with taking the residual stresses into account. The residual stresses are present in many mechanical components and play an important role in the fatigue problem of structure. By using the cyclic behaviors of material, a simplified method to calculate residual stress relaxation has been proposed in the first part of this paper. Secondly, a method to predict fatigue life with taking the stabilized residual stresses into account is presented. This design tool is based on the finite element method. It has been applied to shot-peened 35NCD16 grade steel. The different fatigue parameters often used in material research are studied. An experimental investigation about this material had been done by Bignonnet[1]. The results of study show that this design tool on fatigue developed by LASMIS[2] is able to take into account different loading parameters.

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