Paper Title:
Influence of the Selected Fatigue Characteristics of the Material on Calculated Fatigue Life under Variable Amplitude Loading
  Abstract

The algorithm of fatigue life determination for machine elements subjected to random loading uses fatigue characteristics of the material determined under constant-amplitude loading. They are usually stress or strain characteristics as well as characteristics using the energy parameter. Their correct selection influences correctness of the obtained results related to the experimental data. The paper presents analysis of convergence of the calculated fatigue lives of some constructional materials subjected to random loading under uniaxial loading state. For calculations concerning one material the same loading state was assumed and fatigue characteristics were determined on the basis of one data set obtained under constant strain amplitude tests. Calculated fatigue lives based on different fatigue characteristics were compared and their convergences were tested. It has been proved that convergences are different depending on the material. The comparison results were presented in form of graphs.

  Info
Periodical
Chapter
Chapter 3: Uncertainty in Usage
Edited by
Holger Hanselka, Peter Groche and Roland Platz
Pages
197-205
DOI
10.4028/www.scientific.net/AMM.104.197
Citation
A. Niesłony, A. Kurek, "Influence of the Selected Fatigue Characteristics of the Material on Calculated Fatigue Life under Variable Amplitude Loading", Applied Mechanics and Materials, Vol. 104, pp. 197-205, 2012
Online since
September 2011
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Price
$32.00
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