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A fatigue life calculation method for structural elements made of D16CzATW aluminium alloy

Abstract

In the calculating of fatigue life of structural elements the methods based on hypotheses of fatigue damage summation are commonly applied. In using the methods, apart from choice of an appropriate hypothesis, it is necessary to know a loading spectrum which usually constitutes a set of sinusoidal cycles of variable parameters (Sa, Sm), as well as fatigue characteristics in the form of Wöhler fatigue diagram, as a rule. Knowledge of the above mentioned data is low during structural design process as designed material objects and possibility of performing measurements are lacking. Hence in this work a calculation method of fatigue life of structural elements, based on the relations between fatigue life diagrams determined in constant-amplitude conditions (Wöhler diagrams) and those obtained under programmed or random loads, is described. The proposed method was experimentally verified by using results of fatigue tests on structural elements made of D16CzATW aluminium alloy.

Keywords:

fatigue life, structural elements, D16CzATW aluminium alloy

Details

Issue
Vol. 17 No. 3(65) (2010)
Section
Latest Articles
Published
21-01-2011
DOI:
https://doi.org/10.2478/v10012-010-0023-2
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Author Biographies

Józef Szala,
University of Technology and Life Science in Bydgoszcz, Faculty of Mechanical Engineering



Grzegorz Szala,
University of Technology and Life Science in Bydgoszcz, Faculty of Mechanical Engineering



Authors

  • Józef Szala

    University of Technology and Life Science in Bydgoszcz, Faculty of Mechanical Engineering
  • Grzegorz Szala

    University of Technology and Life Science in Bydgoszcz, Faculty of Mechanical Engineering

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