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  4. Schädigungsproportionale Beschreibung von Lastfolgen mit veränderlichen Mittellasten. Das Trennverfahren
 
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1997
Book
Title

Schädigungsproportionale Beschreibung von Lastfolgen mit veränderlichen Mittellasten. Das Trennverfahren

Other Title
Damage proportional description of load-time-histories with variable mean loadings. The separation procedure
Abstract
The separation procedure was developed to increase the reliability of fatigue life predictions under load time histories with variable mean loadings. The procedure characterizes sequence effects with damage-proportional data typical for loading and component in an integral manner. On the basis of these data actual damage sums are calculated for fatigue life predictions with linear damage accumulation. By application of the procedure the prediction accuracy for the nominal stress approach and the conventional local stress approach is increased. The scatter of calculations is acceptable for the design of structural components.
Author(s)
Oppermann, H.
Publisher
LBF  
Publishing Place
Darmstadt
Language
German
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Keyword(s)
  • damage accumulation hypothesis

  • damage sum

  • fatigue life prediction

  • fatigue strength

  • Kerbgrundkonzept

  • Lebensdauervorhersage

  • local stress approach

  • metallic material

  • metallischer Werkstoff

  • Mittellaständerung

  • Nennspannungskonzept

  • nominal stress approach

  • random loading

  • Reihenfolgewirkung

  • reliability

  • Schadensakkumulation

  • Schadenssumme

  • Schwingfestigkeit

  • sequence effect

  • Treffsicherheit

  • variable mean loading

  • Zufallslastfolge

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