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Title:Simulation of overload effect in fatigue based on neubers analysis
Author(s):Stadnick, S.J.
Subject(s):Overload Effects
Abstract:Fatigue results are reported for notched specimens which are subjected to one large cycle of preload. The preload causes plastic strains in the metal at the notch root which may establish local tensile or compressive residual stresses. Both the “prior plastic strain” and residual stresses affect the subsequent fatigue life at a lower stress level. The stress and strain history of the metal at the notch root of the preloaded specimens is simulated in smooth specimens by the use of Neuber’s analysis. A procedure based on Neuber’s analysis is developed for the estimation of fatigue life of preloaded notched members from strain-life data for the metal. In all cases investigated, the smooth specimen simulations and the predictions from material fatigue properties are in good agreement with the notched specimen fatigue life data.
Issue Date:1969-07
Publisher:Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report:TAM R 325
Genre:Technical Report
Sponsor:Aeronautical Structures Laboratory, Naval Air Engineering Center, Contract No. NOO-156-67-C-1875
Rights Information:Copyright 1969 Board of Trustees of the University of Illinois
Date Available in IDEALS:2021-11-04

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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