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  4. Fatigue Behaviour of Welded Aluminium under Multiaxial Loading
 
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2001
Conference Paper
Title

Fatigue Behaviour of Welded Aluminium under Multiaxial Loading

Abstract
Multiaxial stress states occur in many welded constructions like chemical plants, railway carriages and frames of trucks. Those stresses can have constant and changing principal stress directions, depending on the loading mode. Latest research results on welded steel joints show a loss of fatigue life for changing principal stress directions simulated by out-of-phase bending and torsion compared to constant directions given by in-phase loading. However, aluminium welds reveal no influence of changing principal directions on fatigue life compared to multiaxial loading with constant principal stress directions. This behaviour is not predictable by any conventional hypothesis.
Author(s)
Sonsino, C.M.
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Küppers, M.
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Mainwork
Sixth International Conference on Biaxial/ Multiaxial Fatigue & Fracture 2001. Proceedings  
Conference
International Conference on Biaxial/Multiaxial Fatigue & Fracture 2001  
Language
English
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Keyword(s)
  • welding parameter

  • durability

  • multiaxial loading

  • bending

  • stress

  • torsion

  • fatigue behaviour

  • welding crack

  • fatigue crack

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